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BUFFALO/Flashlights: Constraints on the abundance of lensed supergiant stars in the Spock galaxy at redshift 1 (2024)
Journal Article
Diego, J. M., Li, S. K., Meena, A. K., Niemiec, A., Acebron, A., Jauzac, M., …Pascale, M. (2024). BUFFALO/Flashlights: Constraints on the abundance of lensed supergiant stars in the Spock galaxy at redshift 1. Astronomy & Astrophysics, 681, Article A124. https://doi.org/10.1051/0004-6361/202346761

In this work, we present a constraint on the abundance of supergiant (SG) stars at redshift z ≈ 1, based on recent observations of a strongly lensed arc at this redshift. First we derived a free-form model of MACS J0416.1-2403 using data from the Be... Read More about BUFFALO/Flashlights: Constraints on the abundance of lensed supergiant stars in the Spock galaxy at redshift 1.

A full reconstruction of two galaxy clusters intra-cluster medium with strong gravitational lensing (2024)
Journal Article
Allingham, J. F. V., Bœhm, C., Eckert, D., Jauzac, M., Lagattuta, D., Mahler, G., …Ettori, S. (2024). A full reconstruction of two galaxy clusters intra-cluster medium with strong gravitational lensing. Monthly Notices of the Royal Astronomical Society, 528(2), 1711-1736. https://doi.org/10.1093/mnras/stae107

Whilst X-rays and Sunyaev–Zel’dovich observations allow to study the properties of the intra-cluster medium (ICM) of galaxy clusters, their gravitational potential may be constrained using strong gravitational lensing. Although being physically relat... Read More about A full reconstruction of two galaxy clusters intra-cluster medium with strong gravitational lensing.

Exploring the correlation between dark matter, intracluster light, and globular cluster distribution in SMACS0723 (2023)
Journal Article
Diego, J. M., Pascale, M., Frye, B., Zitrin, A., Broadhurst, T., Mahler, G., …Montes, M. (2023). Exploring the correlation between dark matter, intracluster light, and globular cluster distribution in SMACS0723. Astronomy & Astrophysics, 679, Article A159. https://doi.org/10.1051/0004-6361/202345868

We present a free-form model of SMACS0723, the first cluster observed with JWST. This model does not make any strong assumptions on the distribution of mass (mostly made up of dark matter) in the cluster and we use it to study the possible correlatio... Read More about Exploring the correlation between dark matter, intracluster light, and globular cluster distribution in SMACS0723.

Data Downloaded via Parachute from a NASA Super-Pressure Balloon (2023)
Journal Article
Sirks, E. L., Massey, R., Gill, A. S., Anderson, J., Benton, S. J., Brown, A. M., …Vassilakis, G. N. (2023). Data Downloaded via Parachute from a NASA Super-Pressure Balloon. Aerospace, 10(11), Article 960. https://doi.org/10.3390/aerospace10110960

In April 2023, the superBIT telescope was lifted to the Earth’s stratosphere by a helium-filled super-pressure balloon to acquire astronomical imaging from above (99.5% of) the Earth’s atmosphere. It was launched from New Zealand and then, for 40 day... Read More about Data Downloaded via Parachute from a NASA Super-Pressure Balloon.

A new step forward in realistic cluster lens mass modelling: analysis of Hubble Frontier Field Cluster Abell S1063 from joint lensing, X-ray, and galaxy kinematics data (2023)
Journal Article
Beauchesne, B., Clément, B., Hibon, P., Limousin, M., Eckert, D., Kneib, J., …Sánchez, J. (2024). A new step forward in realistic cluster lens mass modelling: analysis of Hubble Frontier Field Cluster Abell S1063 from joint lensing, X-ray, and galaxy kinematics data. Monthly Notices of the Royal Astronomical Society, 527(2), 3246–3275. https://doi.org/10.1093/mnras/stad3308

We present a new method to simultaneously and self-consistently model the mass distribution of galaxy clusters that combines constraints from strong lensing features, X-ray emission, and galaxy kinematics measurements. We are able to successfully dec... Read More about A new step forward in realistic cluster lens mass modelling: analysis of Hubble Frontier Field Cluster Abell S1063 from joint lensing, X-ray, and galaxy kinematics data.

Lensing in the Blue. II. Estimating the Sensitivity of Stratospheric Balloons to Weak Gravitational Lensing (2023)
Journal Article
McCleary, J. E., Everett, S. W., Shaaban, M. M., Gill, A. S., Vassilakis, G. N., Huff, E. M., …Tam, S. I. (2023). Lensing in the Blue. II. Estimating the Sensitivity of Stratospheric Balloons to Weak Gravitational Lensing. Astronomical Journal, 166(3), https://doi.org/10.3847/1538-3881/ace7ca

The Superpressure Balloon-borne Imaging Telescope (SuperBIT) is a diffraction-limited, wide-field, 0.5 m, near-infrared to near-ultraviolet observatory designed to exploit the stratosphere's space-like conditions. SuperBIT's 2023 science flight will... Read More about Lensing in the Blue. II. Estimating the Sensitivity of Stratospheric Balloons to Weak Gravitational Lensing.

The Magnificent Five Images of Supernova Refsdal: Time Delay and Magnification Measurements (2023)
Journal Article
Kelly, P. L., Rodney, S., Treu, T., Birrer, S., Bonvin, V., Dessart, L., …Wambsganss, J. (2023). The Magnificent Five Images of Supernova Refsdal: Time Delay and Magnification Measurements. Astrophysical Journal, 948(2), Article 93. https://doi.org/10.3847/1538-4357/ac4ccb

In late 2014, four images of supernova (SN) "Refsdal," the first known example of a strongly lensed SN with multiple resolved images, were detected in the MACS J1149 galaxy-cluster field. Following the images' discovery, the SN was predicted to reapp... Read More about The Magnificent Five Images of Supernova Refsdal: Time Delay and Magnification Measurements.

RXJ0437+00: constraining dark matter with exotic gravitational lenses (2023)
Journal Article
Lagattuta, D. J., Richard, J., Ebeling, H., Basto, Q., Cerny, C., Edge, A., …Massey, R. (2023). RXJ0437+00: constraining dark matter with exotic gravitational lenses. Monthly Notices of the Royal Astronomical Society, 522(1), 1091-1107. https://doi.org/10.1093/mnras/stad803

We present the first strong-gravitational-lensing analysis of the galaxy cluster RX J0437.1+0043 (RXJ0437; z = 0.285). Newly obtained, deep MUSE observations, Keck/MOSFIRE near-infrared spectroscopy, and Hubble Space Telescope SNAPshot imaging reveal... Read More about RXJ0437+00: constraining dark matter with exotic gravitational lenses.

Joint HST, VLT/MUSE, and XMM−Newton observations to constrain the mass distribution of the two strong lensing galaxy clusters: MACS J0242.5-2132 and MACS J0949.8+1708 (2023)
Journal Article
Allingham, J. F. V., Jauzac, M., Lagattuta, D. J., Mahler, G., Bœhm, C., Lewis, G. F., …Ettori, S. (2023). Joint HST, VLT/MUSE, and XMM−Newton observations to constrain the mass distribution of the two strong lensing galaxy clusters: MACS J0242.5-2132 and MACS J0949.8+1708. Monthly Notices of the Royal Astronomical Society, 522(1), 1118-1137. https://doi.org/10.1093/mnras/stad917

On the gravitational lensing interpretation of three gravitational wave detections in the mass gap by LIGO and Virgo (2023)
Journal Article
Bianconi, M., Smith, G. P., Nicholl, M., Ryczanowski, D., Richard, J., Jauzac, M., …Ridley, E. (2023). On the gravitational lensing interpretation of three gravitational wave detections in the mass gap by LIGO and Virgo. Monthly Notices of the Royal Astronomical Society, 521(3), 3421-3430. https://doi.org/10.1093/mnras/stad673

We search for gravitational wave (GW) events from LIGO-Virgo’s third run that may have been affected by gravitational lensing. Gravitational lensing delays the arrival of GWs, and alters their amplitude – thus biasing the inferred progenitor masses.... Read More about On the gravitational lensing interpretation of three gravitational wave detections in the mass gap by LIGO and Virgo.

Precision Modeling of JWST's First Cluster Lens SMACS J0723.3–7327* (2023)
Journal Article
Mahler, G., Jauzac, M., Richard, J., Beauchesne, B., Ebeling, H., Lagattuta, D., …Niemiec, A. (2023). Precision Modeling of JWST's First Cluster Lens SMACS J0723.3–7327*. Astrophysical Journal, 945(1), Article 49. https://doi.org/10.3847/1538-4357/acaea9

Exploiting the fundamentally achromatic nature of gravitational lensing, we present a lens model for the massive galaxy cluster SMACS J0723.3−7323 (SMACS J0723; z = 0.388) that significantly improves upon earlier work. Building on strong-lensing cons... Read More about Precision Modeling of JWST's First Cluster Lens SMACS J0723.3–7327*.

Discovering gravitationally lensed gravitational waves: predicted rates, candidate selection, and localization with the Vera Rubin Observatory (2023)
Journal Article
Smith, G. P., Robertson, A., Mahler, G., Nicholl, M., Ryczanowski, D., Bianconi, M., …Jauzac, M. (2023). Discovering gravitationally lensed gravitational waves: predicted rates, candidate selection, and localization with the Vera Rubin Observatory. Monthly Notices of the Royal Astronomical Society, 520(1), 702-721. https://doi.org/10.1093/mnras/stad140

Secure confirmation that a gravitational wave (GW) has been gravitationally lensed would bring together these two pillars of General Relativity for the first time. This breakthrough is challenging for many reasons, including: GW sky localization unce... Read More about Discovering gravitationally lensed gravitational waves: predicted rates, candidate selection, and localization with the Vera Rubin Observatory.

Ram pressure stripping in the z  ∼  0.5 galaxy cluster MS 0451.6-0305 (2022)
Journal Article
Durret, F., Degott, L., Lobo, C., Ebeling, H., Jauzac, M., & Tam, S. (2022). Ram pressure stripping in the z  ∼  0.5 galaxy cluster MS 0451.6-0305. Astronomy & Astrophysics, 662, Article A84. https://doi.org/10.1051/0004-6361/202142983

The pressure exerted by the ambient hot X-ray gas on cluster galaxies can lead to the presence of ram pressure stripped (RPS) galaxies, characterized by asymmetric shapes, and, in some cases, tails of blue stars and/or X-ray gas, with increased star... Read More about Ram pressure stripping in the z  ∼  0.5 galaxy cluster MS 0451.6-0305.

Pilot-WINGS: An extended MUSE view of the structure of Abell 370 (2022)
Journal Article
Lagattuta, D. J., Richard, J., Bauer, F. E., Cerny, C., Claeyssens, A., Guaita, L., …Weaver, J. R. (2022). Pilot-WINGS: An extended MUSE view of the structure of Abell 370. Monthly Notices of the Royal Astronomical Society, 514(1), 497-517. https://doi.org/10.1093/mnras/stac418

We investigate the strong-lensing cluster Abell 370 (A370) using a wide Integral Field Unit (IFU) spectroscopic mosaic from the Multi-Unit Spectroscopic Explorer (MUSE). IFU spectroscopy provides significant insight into the structure and mass conten... Read More about Pilot-WINGS: An extended MUSE view of the structure of Abell 370.

Scatter in the satellite galaxy SHMR: fitting functions, scaling relations, and physical processes from the IllustrisTNG simulation (2022)
Journal Article
Niemiec, A., Giocoli, C., Cohen, E., Jauzac, M., Jullo, E., & Limousin, M. (2022). Scatter in the satellite galaxy SHMR: fitting functions, scaling relations, and physical processes from the IllustrisTNG simulation. Monthly Notices of the Royal Astronomical Society, 512(4), 6021-6037. https://doi.org/10.1093/mnras/stac832

The connection between galaxies and their dark matter haloes is often described with the stellar-to-halo mass relation (SHMR). Satellite galaxies in clusters follow an SHMR distinct from central galaxies because of the environmental processes that th... Read More about Scatter in the satellite galaxy SHMR: fitting functions, scaling relations, and physical processes from the IllustrisTNG simulation.

Extensive Lensing Survey of Optical and Near-infrared Dark Objects (El Sonido): HST H-faint Galaxies behind 101 Lensing Clusters (2021)
Journal Article
Sun, F., Egami, E., Pérez-González, P. G., Smail, I., Caputi, K. I., Bauer, F. E., …Weaver, J. R. (2021). Extensive Lensing Survey of Optical and Near-infrared Dark Objects (El Sonido): HST H-faint Galaxies behind 101 Lensing Clusters. Astrophysical Journal, 922(2), https://doi.org/10.3847/1538-4357/ac2578

We present a Spitzer/IRAC survey of H-faint (H160 ≳ 26.4, < 5σ) sources in 101 lensing cluster fields. Across a CANDELS/Wide-like survey area of ∼648 arcmin2 (effectively ∼221 arcmin2 in the source plane), we have securely discovered 53 sources in th... Read More about Extensive Lensing Survey of Optical and Near-infrared Dark Objects (El Sonido): HST H-faint Galaxies behind 101 Lensing Clusters.

Erratum: Further support for a trio of mass-to-light deviations in Abell 370: free-form grale lens inversion using BUFFALO strong lensing data (2021)
Journal Article
Ghosh, A., Williams, L. L., Liesenborgs, J., Acebron, A., Jauzac, M., Koekemoer, A. M., …Natarajan, P. (2021). Erratum: Further support for a trio of mass-to-light deviations in Abell 370: free-form grale lens inversion using BUFFALO strong lensing data. Monthly Notices of the Royal Astronomical Society, 506(4), https://doi.org/10.1093/mnras/stab2096

Galaxy cluster cores as seen with VLT/MUSE: New strong-lensing analyses of RX J2129.4 + 0009, MS 0451.6 − 0305, and MACS J2129.4 − 0741 (2021)
Journal Article
Jauzac, M., Klein, B., Kneib, J., Richard, J., Rexroth, M., Schäfer, C., & Verdier, A. (2021). Galaxy cluster cores as seen with VLT/MUSE: New strong-lensing analyses of RX J2129.4 + 0009, MS 0451.6 − 0305, and MACS J2129.4 − 0741. Monthly Notices of the Royal Astronomical Society, 508(1), 1206-1226. https://doi.org/10.1093/mnras/stab2270

We present strong-lensing analyses of three galaxy clusters, RX J2129.4 + 0009 (z = 0.235), MS 0451.6 − 0305 (z = 0.55), and MACS J2129.4 − 0741 (z = 0.589), using the powerful combination of Hubble Space Telescope (HST) multiband observations, and M... Read More about Galaxy cluster cores as seen with VLT/MUSE: New strong-lensing analyses of RX J2129.4 + 0009, MS 0451.6 − 0305, and MACS J2129.4 − 0741.

The Cluster HEritage project with XMM-Newton: Mass Assembly and Thermodynamics at the Endpoint of structure formation (2021)
Journal Article
Arnaud, M., Ettori, S., Pratt, G., Rossetti, M., Eckert, D., Gastaldello, F., …Zarattini, S. (2021). The Cluster HEritage project with XMM-Newton: Mass Assembly and Thermodynamics at the Endpoint of structure formation. Astronomy & Astrophysics, 650, Article A104. https://doi.org/10.1051/0004-6361/202039632

The Cluster HEritage project with XMM-Newton – Mass Assembly and Thermodynamics at the Endpoint of structure formation (CHEX-MATE) is a three-mega-second Multi-Year Heritage Programme to obtain X-ray observations of a minimally-biased, signal-to-nois... Read More about The Cluster HEritage project with XMM-Newton: Mass Assembly and Thermodynamics at the Endpoint of structure formation.

Further support for a trio of mass-to-light deviations in Abell 370: free-form grale lens inversion using BUFFALO strong lensing data (2021)
Journal Article
Ghosh, A., Williams, L. L., Liesenborgs, J., Acebron, A., Jauzac, M., Koekemoer, A. M., …Natarajan, P. (2021). Further support for a trio of mass-to-light deviations in Abell 370: free-form grale lens inversion using BUFFALO strong lensing data. Monthly Notices of the Royal Astronomical Society, 506(4), 6144-6158. https://doi.org/10.1093/mnras/stab1196

We use the Beyond Ultra-deep Frontier Fields and Legacy Observations (BUFFALO) strong lensing image catalogue of the merging galaxy cluster Abell 370 to obtain a mass model using free-form lens inversion algorithm GRALE. The improvement of the strong... Read More about Further support for a trio of mass-to-light deviations in Abell 370: free-form grale lens inversion using BUFFALO strong lensing data.

Jellyfish galaxy candidates in MACS J0717.5+3745 and 39 other clusters of the DAFT/FADA and CLASH surveys (2021)
Journal Article
Durret, F., Chiche, S., Lobo, C., & Jauzac, M. (2021). Jellyfish galaxy candidates in MACS J0717.5+3745 and 39 other clusters of the DAFT/FADA and CLASH surveys. Astronomy & Astrophysics, 648, Article A63. https://doi.org/10.1051/0004-6361/202039770

Context. Galaxies in clusters undergo several phenomena, such as RPS and tidal interactions, that can trigger or quench their star formation and, in some cases, lead to galaxies acquiring unusual shapes and long tails – some become jellyfish. Aims. W... Read More about Jellyfish galaxy candidates in MACS J0717.5+3745 and 39 other clusters of the DAFT/FADA and CLASH surveys.

Stellar splashback: the edge of the intracluster light (2020)
Journal Article
Deason, A. J., Oman, K. A., Fattahi, A., Schaller, M., Jauzac, M., Zhang, Y., …Evans, T. A. (2021). Stellar splashback: the edge of the intracluster light. Monthly Notices of the Royal Astronomical Society, 500(3), 4181-4192. https://doi.org/10.1093/mnras/staa3590

We examine the outskirts of galaxy clusters in the C-EAGLE simulations to quantify the ‘edges’ of the stellar and dark matter distribution. The radius of the steepest slope in the dark matter, commonly used as a proxy for the splashback radius, is lo... Read More about Stellar splashback: the edge of the intracluster light.

Reconciling galaxy cluster shapes, measured by theorists vs observers (2020)
Journal Article
Harvey, D., Robertson, A., Tam, S., Jauzac, M., Massey, R., Rhodes, J., & McCarthy, I. G. (2021). Reconciling galaxy cluster shapes, measured by theorists vs observers. Monthly Notices of the Royal Astronomical Society, 500(2), 2627-2644. https://doi.org/10.1093/mnras/staa3193

If properly calibrated, the shapes of galaxy clusters can be used to investigate many physical processes: from feedback and quenching of star formation, to the nature of dark matter. Theorists frequently measure shapes using moments of inertia of sim... Read More about Reconciling galaxy cluster shapes, measured by theorists vs observers.

Molecular gas and star formation activity in luminous infrared galaxies in clusters at intermediate redshifts (2020)
Journal Article
Castignani, G., Jablonka, P., Combes, F., Haines, C., Rawle, T., Jauzac, M., …Bigiel, F. (2020). Molecular gas and star formation activity in luminous infrared galaxies in clusters at intermediate redshifts. Astronomy & Astrophysics, 640, Article A64. https://doi.org/10.1051/0004-6361/201937190

We investigate the role of dense megaparsec-scale environments in processing molecular gas of cluster galaxies as they fall into the cluster cores. We selected a sample of ∼20 luminous infrared galaxies (LIRGs) belonging to intermediate-redshift clus... Read More about Molecular gas and star formation activity in luminous infrared galaxies in clusters at intermediate redshifts.

The distribution of dark matter and gas spanning 6 Mpc around the post-merger galaxy cluster MS 0451-03 (2020)
Journal Article
Tam, S., Jauzac, M., Massey, R., Harvey, D., Eckert, D., Ebeling, H., …Smith, G. (2020). The distribution of dark matter and gas spanning 6 Mpc around the post-merger galaxy cluster MS 0451-03. Monthly Notices of the Royal Astronomical Society, 496(3), 4032-4050. https://doi.org/10.1093/mnras/staa1828

Using the largest mosaic of Hubble Space Telescope images around a galaxy cluster, we map the distribution of dark matter throughout an ∼6 × 6 Mpc2 area centred on the cluster MS 0451−03 (z = 0.54, M200=1.65×1015M⊙⁠). Our joint strong- and weak-lensi... Read More about The distribution of dark matter and gas spanning 6 Mpc around the post-merger galaxy cluster MS 0451-03.

Mapping dark matter and finding filaments: calibration of lensing analysis techniques on simulated data (2020)
Journal Article
Tam, S., Massey, R., Jauzac, M., & Robertson, A. (2020). Mapping dark matter and finding filaments: calibration of lensing analysis techniques on simulated data. Monthly Notices of the Royal Astronomical Society, 496(3), 3973-3990. https://doi.org/10.1093/mnras/staa1756

We quantify the performance of mass mapping techniques on mock imaging and gravitational lensing data of galaxy clusters. The optimum method depends upon the scientific goal. We assess measurements of clusters’ radial density profiles, departures fro... Read More about Mapping dark matter and finding filaments: calibration of lensing analysis techniques on simulated data.

What does strong gravitational lensing? The mass and redshift distribution of high-magnification lenses (2020)
Journal Article
Robertson, A., Smith, G. P., Massey, R., Eke, V., Jauzac, M., Bianconi, M., & Ryczanowski, D. (2020). What does strong gravitational lensing? The mass and redshift distribution of high-magnification lenses. Monthly Notices of the Royal Astronomical Society, 495(4), 3727-3739. https://doi.org/10.1093/mnras/staa1429

Many distant objects can only be detected, or become more scientifically valuable, if they have been highly magnified by strong gravitational lensing. We use eagle and bahamas, two recent cosmological hydrodynamical simulations, to predict the probab... Read More about What does strong gravitational lensing? The mass and redshift distribution of high-magnification lenses.

Download by parachute: retrieval of assets from high altitude balloons (2020)
Journal Article
Sirks, E., Clark, P., Massey, R., Benton, S., Brown, A., Damaren, C., …Tam, S. (2020). Download by parachute: retrieval of assets from high altitude balloons. Journal of Instrumentation, 15(05), Article P05014. https://doi.org/10.1088/1748-0221/15/05/p05014

We present a publicly-available toolkit of flight-proven hardware and software to retrieve 5 TB of data or small physical samples from a stratospheric balloon platform. Before launch, a capsule is attached to the balloon, and rises with it. Upon remo... Read More about Download by parachute: retrieval of assets from high altitude balloons.

On building a cluster watch-list for identifying strongly lensed supernovae, gravitational waves and kilonovae (2020)
Journal Article
Ryczanowski, D., Smith, G. P., Bianconi, M., Massey, R., Robertson, A., & Jauzac, M. (2020). On building a cluster watch-list for identifying strongly lensed supernovae, gravitational waves and kilonovae. Monthly Notices of the Royal Astronomical Society, 495(2), 1666-1671. https://doi.org/10.1093/mnras/staa1274

Motivated by discovering strongly-lensed supernovae, gravitational waves, and kilonovae in the 2020s, we investigate whether to build a watch-list of clusters based on observed cluster properties (i.e. lens-plane selection) or on the detectability of... Read More about On building a cluster watch-list for identifying strongly lensed supernovae, gravitational waves and kilonovae.

The BUFFALO HST Survey (2020)
Journal Article
Steinhardt, C. L., Jauzac, M., Acebron, A., Atek, H., Capak, P., Davidzon, I., …Zitrin, A. (2020). The BUFFALO HST Survey. Astrophysical Journal Supplement, 247(2), Article 64. https://doi.org/10.3847/1538-4365/ab75ed

The Beyond Ultra-deep Frontier Fields and Legacy Observations (BUFFALO) is a 101 orbit + 101 parallel Cycle 25 Hubble Space Telescope (HST) Treasury program taking data from 2018 to 2020. BUFFALO will expand existing coverage of the Hubble Frontier F... Read More about The BUFFALO HST Survey.

Setting the scene for BUFFALO: a study of the matter distribution in the HFF galaxy cluster MACS J0416.1−2403 and its parallel field (2020)
Journal Article
Steinhardt, C., Remolina Gonzalez, J., Diego, J., Connor, T., Clowe, D., Barnes, D., …Gonzalez, E. (2020). Setting the scene for BUFFALO: a study of the matter distribution in the HFF galaxy cluster MACS J0416.1−2403 and its parallel field. Monthly Notices of the Royal Astronomical Society, 494(1), 349-362. https://doi.org/10.1093/mnras/staa745

In the context of the Beyond Ultradeep Frontier Fields And Legacy Observations (BUFFALO) survey, we present a new analysis of the merging galaxy cluster MACS J0416.1−2403 (z = 0.397) and its parallel field using Hubble Frontier Fields (HFF) data. We... Read More about Setting the scene for BUFFALO: a study of the matter distribution in the HFF galaxy cluster MACS J0416.1−2403 and its parallel field.

Robust diffraction-limited near-infrared-to-near-ultraviolet wide-field imaging from stratospheric balloon-borne platforms—Super-pressure Balloon-borne Imaging Telescope performance (2020)
Journal Article
Romualdez, L. J., Benton, S. J., Brown, A. M., Clark, P., Damaren, C. J., Eifler, T., …Tam, S. (2020). Robust diffraction-limited near-infrared-to-near-ultraviolet wide-field imaging from stratospheric balloon-borne platforms—Super-pressure Balloon-borne Imaging Telescope performance. Review of Scientific Instruments, 91(3), Article 034501. https://doi.org/10.1063/1.5139711

At a fraction of the total cost of an equivalent orbital mission, scientific balloon-borne platforms, operating above 99.7% of the Earth’s atmosphere, offer attractive, competitive, and effective observational capabilities—namely, space-like seeing,... Read More about Robust diffraction-limited near-infrared-to-near-ultraviolet wide-field imaging from stratospheric balloon-borne platforms—Super-pressure Balloon-borne Imaging Telescope performance.

hybrid-lenstool: a self-consistent algorithm to model galaxy clusters with strong- and weak-lensing simultaneously (2020)
Journal Article
Richard, J., Natarajan, P., Kneib, J., Sharon, K., Limousin, M., Jullo, E., …Niemiec, A. (2020). hybrid-lenstool: a self-consistent algorithm to model galaxy clusters with strong- and weak-lensing simultaneously. Monthly Notices of the Royal Astronomical Society, 493(3), 3331-3340. https://doi.org/10.1093/mnras/staa473

We present a new galaxy cluster lens modelling approach, hybrid-LENSTOOL, that is implemented in the publicly available modelling software LENSTOOL. hybrid-LENSTOOL combines a parametric approach to model the core of the cluster, and a non-parametric... Read More about hybrid-lenstool: a self-consistent algorithm to model galaxy clusters with strong- and weak-lensing simultaneously.

The complex case of MACS J0717.5+3745 and its extended filament: intra-cluster light, galaxy luminosity function, and galaxy orientations (2019)
Journal Article
Ellien, A., Durret, F., Adami, C., Martinet, N., Lobo, C., & Jauzac, M. (2019). The complex case of MACS J0717.5+3745 and its extended filament: intra-cluster light, galaxy luminosity function, and galaxy orientations. Astronomy & Astrophysics, 628, Article A34. https://doi.org/10.1051/0004-6361/201935673

Context. The properties of galaxies are known to be aected by their environment, but although galaxies in clusters and groups have been quite thoroughly investigated, little is known about galaxies belonging to filaments of the cosmic web, or about t... Read More about The complex case of MACS J0717.5+3745 and its extended filament: intra-cluster light, galaxy luminosity function, and galaxy orientations.

Observable tests of self-interacting dark matter in galaxy clusters: cosmological simulations with SIDM and baryons (2019)
Journal Article
Robertson, A., Harvey, D., Massey, R., Eke, V., McCarthy, I. G., Jauzac, M., …Schaye, J. (2019). Observable tests of self-interacting dark matter in galaxy clusters: cosmological simulations with SIDM and baryons. Monthly Notices of the Royal Astronomical Society, 488(3), 3646-3662. https://doi.org/10.1093/mnras/stz1815

We present BAHAMAS-SIDM, the first large-volume, (400 h−1 Mpc)3, cosmological simulations including both self-interacting dark matter (SIDM) and baryonic physics. These simulations are important for two primary reasons: 1) they include the effects of... Read More about Observable tests of self-interacting dark matter in galaxy clusters: cosmological simulations with SIDM and baryons.

Dark matter stripping in galaxy clusters: a look at the stellar-to-halo mass relation in the Illustris simulation (2019)
Journal Article
Niemiec, A., Jullo, E., Giocoli, C., Limousin, M., & Jauzac, M. (2019). Dark matter stripping in galaxy clusters: a look at the stellar-to-halo mass relation in the Illustris simulation. Monthly Notices of the Royal Astronomical Society, 487(1), 653-666. https://doi.org/10.1093/mnras/stz1318

Satellite galaxies in galaxy clusters represent a significant fraction of the global galaxy population. Because of the unusual dense environment of clusters, their evolution is driven by different mechanisms than the ones affecting field or central g... Read More about Dark matter stripping in galaxy clusters: a look at the stellar-to-halo mass relation in the Illustris simulation.

Deep and rapid observations of strong-lensing galaxy clusters within the sky localization of GW170814 (2019)
Journal Article
Smith, G., Bianconi, M., Jauzac, M., Richard, J., Robertson, A., Berry, C., …Veitch, J. (2019). Deep and rapid observations of strong-lensing galaxy clusters within the sky localization of GW170814. Monthly Notices of the Royal Astronomical Society, 485(4), 5180-5191. https://doi.org/10.1093/mnras/stz675

We present observations of two strong-lensing galaxy clusters located within the 90 per cent credible sky localization maps released following LIGO-Virgo’s discovery of the binary black hole (BH-BH) gravitational wave (GW) source GW170814. Our object... Read More about Deep and rapid observations of strong-lensing galaxy clusters within the sky localization of GW170814.

RELICS: Strong Lensing Analysis of MACS J0417.5–1154 and Predictions for Observing the Magnified High-redshift Universe with JWST (2019)
Journal Article
Mahler, G., Sharon, K., Fox, C., Coe, D., Jauzac, M., Strait, V., …Zitrin, A. (2019). RELICS: Strong Lensing Analysis of MACS J0417.5–1154 and Predictions for Observing the Magnified High-redshift Universe with JWST. Astrophysical Journal, 873(1), Article 96. https://doi.org/10.3847/1538-4357/ab042b

Strong gravitational lensing by clusters of galaxies probes the mass distribution at the core of each cluster and magnifies the universe behind it. MACS J0417.5−1154 at z = 0.443 is one of the most massive clusters known based on weak lensing, X-ray,... Read More about RELICS: Strong Lensing Analysis of MACS J0417.5–1154 and Predictions for Observing the Magnified High-redshift Universe with JWST.

The core of the massive cluster merger MACS J0417.5-1154 as seen by VLT/MUSE (2018)
Journal Article
Jauzac, M., Mahler, G., Edge, A. C., Sharon, K., Gillman, S., Ebeling, H., …Salomé, P. (2018). The core of the massive cluster merger MACS J0417.5-1154 as seen by VLT/MUSE. Monthly Notices of the Royal Astronomical Society, 483(3), 3082-3097. https://doi.org/10.1093/mnras/sty3312

We present a multiwavelength analysis of the core of the massive galaxy cluster MACS J0417.5−1154 (⁠z = 0.441). Our analysis takes advantage of Very Large Telescope/Multi-Unit Spectroscopic Explorer observations which allow the spectroscopic confirma... Read More about The core of the massive cluster merger MACS J0417.5-1154 as seen by VLT/MUSE.

Uncovering substructure with wavelets: proof of concept using Abell 2744 (2018)
Journal Article
Schwinn, J., Baugh, C., Jauzac, M., Bartelmann, M., & Eckert, D. (2018). Uncovering substructure with wavelets: proof of concept using Abell 2744. Monthly Notices of the Royal Astronomical Society, 481(4), 4300-4310. https://doi.org/10.1093/mnras/sty2566

A recent comparison of the massive galaxy cluster Abell 2744 with the Millennium XXL (MXXL) N-body simulation has hinted at a tension between the observed substructure distribution and the predictions of Λ cold dark matter (ΛCDM). Follow-up investiga... Read More about Uncovering substructure with wavelets: proof of concept using Abell 2744.

Growing a ‘cosmic beast’: observations and simulations of MACS J0717.5+3745 (2018)
Journal Article
Jauzac, M., Eckert, D., Schaller, M., Schwinn, J., Massey, R., Bahé, Y., …Umetsu, K. (2018). Growing a ‘cosmic beast’: observations and simulations of MACS J0717.5+3745. Monthly Notices of the Royal Astronomical Society, 481(3), 2901-2917. https://doi.org/10.1093/mnras/sty2366

We present a gravitational lensing and X-ray analysis of a massive galaxy cluster and its surroundings. The core of MACS J0717.5+3745 (M(R < 1 Mpc) ∼ 2 × 1015 M, z = 0.54) is already known to contain four merging components. We show that this is surr... Read More about Growing a ‘cosmic beast’: observations and simulations of MACS J0717.5+3745.

Auto-tuned thermal control on stratospheric balloon experiments (2018)
Conference Proceeding
Redmond, S., Benton, S., Brown, A., Clark, P., Damaren, C., Eifler, T., …Tam, S. (2018). Auto-tuned thermal control on stratospheric balloon experiments. In H. K. Marshall, J. Spyromilio, & R. Gilmozzi (Eds.), Ground-based and Airborne Telescopes VII : 10–15 June 2018, Austin, Texas, United States ; proceedings. https://doi.org/10.1117/12.2312339

Balloon-borne experiments present unique thermal design challenges, which are a combination of those present for both space and ground experiments. Radiation and conduction are the predominant heat transfer mechanisms with convection effects being mi... Read More about Auto-tuned thermal control on stratospheric balloon experiments.

Overview, design, and flight results from SuperBIT: a high-resolution, wide-field, visible-to-near-UV balloon-borne astronomical telescope (2018)
Conference Proceeding
Romualdez, L., Benton, S., Brown, A., Clark, P., Damaren, C., Eifler, T., …Tam, S. (2018). Overview, design, and flight results from SuperBIT: a high-resolution, wide-field, visible-to-near-UV balloon-borne astronomical telescope. In H. Takami, C. J. Evans, & L. Simard (Eds.), Proceedings of SPIE, Ground-based and Airborne Instrumentation for Astronomy VII. https://doi.org/10.1117/12.2307754

Balloon-borne astronomy is a unique tool that allows for a level of image stability and significantly reduced atmospheric interference without the often prohibitive cost and long development time-scale that are characteristic of space-borne facility-... Read More about Overview, design, and flight results from SuperBIT: a high-resolution, wide-field, visible-to-near-UV balloon-borne astronomical telescope.

Galaxy–galaxy lensing in the outskirts of CLASH clusters: constraints on local shear and testing mass–luminosity scaling relation (2018)
Journal Article
Desprez, G., Richard, J., Jauzac, M., Martinez, J., Siana, B., & Clément, B. (2018). Galaxy–galaxy lensing in the outskirts of CLASH clusters: constraints on local shear and testing mass–luminosity scaling relation. Monthly Notices of the Royal Astronomical Society, 479(2), 2630-2648. https://doi.org/10.1093/mnras/sty1666

We present a selection of 24 candidate galaxy–galaxy lensing (GGL) identified from Hubble images in the outskirts of the massive galaxy clusters from the Cluster Lensing And Supernova survey with Hubble (CLASH) . These GGLs provide insights into the... Read More about Galaxy–galaxy lensing in the outskirts of CLASH clusters: constraints on local shear and testing mass–luminosity scaling relation.

Dark matter dynamics in Abell 3827: new data consistent with standard cold dark matter (2018)
Journal Article
Massey, R., Harvey, D., Liesenborgs, J., Richard, J., Stach, S., Swinbank, M., …Tittley, E. (2018). Dark matter dynamics in Abell 3827: new data consistent with standard cold dark matter. Monthly Notices of the Royal Astronomical Society, 477(1), 669-677. https://doi.org/10.1093/mnras/sty630

We present integral field spectroscopy of galaxy cluster Abell 3827, using Atacama Large Millimetre Array (ALMA) and Very Large Telescope/Multi-Unit Spectroscopic Explorer. It reveals an unusual configuration of strong gravitational lensing in the cl... Read More about Dark matter dynamics in Abell 3827: new data consistent with standard cold dark matter.

The shape of galaxy dark matter halos in massive galaxy clusters: Insights from strong gravitational lensing (2018)
Journal Article
Jauzac, M., Harvey, D., & Massey, R. (2018). The shape of galaxy dark matter halos in massive galaxy clusters: Insights from strong gravitational lensing. Monthly Notices of the Royal Astronomical Society, 477(3), 4046-4051. https://doi.org/10.1093/mnras/sty909

We assess how much unused strong lensing information is available in the deep Hubble Space Telescope imaging and Very Large Telescope/Multi Unit Spectroscopic Explorer spectroscopy of the Frontier Field clusters. As a pilot study, we analyse galaxy c... Read More about The shape of galaxy dark matter halos in massive galaxy clusters: Insights from strong gravitational lensing.

Dark Matter under the Microscope: Constraining Compact Dark Matter with Caustic Crossing Events (2018)
Journal Article
Diego, J. M., Kaiser, N., Broadhurst, T., Kelly, P. L., Rodney, S., Morishita, T., …Filippenko, A. V. (2018). Dark Matter under the Microscope: Constraining Compact Dark Matter with Caustic Crossing Events. Astrophysical Journal, 857(1), Article 25. https://doi.org/10.3847/1538-4357/aab617

A galaxy cluster acts as a cosmic telescope over background galaxies but also as a cosmic microscope magnifying the imperfections of the lens. The diverging magnification of lensing caustics enhances the microlensing effect of substructure present wi... Read More about Dark Matter under the Microscope: Constraining Compact Dark Matter with Caustic Crossing Events.

What if LIGO's gravitational wave detections are strongly lensed by massive galaxy clusters? (2018)
Journal Article
Smith, G., Jauzac, M., Veitch, J., Farr, W., Massey, R., & Richard, J. (2018). What if LIGO's gravitational wave detections are strongly lensed by massive galaxy clusters?. Monthly Notices of the Royal Astronomical Society, 475(3), 3823-3828. https://doi.org/10.1093/mnras/sty031

Motivated by the preponderance of so-called ‘heavy black holes’ in the binary black hole (BBH) gravitational wave (GW) detections to date, and the role that gravitational lensing continues to play in discovering new galaxy populations, we explore the... Read More about What if LIGO's gravitational wave detections are strongly lensed by massive galaxy clusters?.

Hubble Frontier Fields: systematic errors in strong lensing models of galaxy clusters – implications for cosmography (2017)
Journal Article
Acebron, A., Jullo, E., Limousin, M., Tilquin, A., Giocoli, C., Jauzac, M., …Richard, J. (2017). Hubble Frontier Fields: systematic errors in strong lensing models of galaxy clusters – implications for cosmography. Monthly Notices of the Royal Astronomical Society, 470(2), 1809-1825. https://doi.org/10.1093/mnras/stx1330

Strong gravitational lensing by galaxy clusters is a fundamental tool to study dark matter and constrain the geometry of the Universe. Recently, the Hubble Space Telescope Frontier Fields programme has allowed a significant improvement of mass and ma... Read More about Hubble Frontier Fields: systematic errors in strong lensing models of galaxy clusters – implications for cosmography.

A test for skewed distributions of dark matter, and a possible detection in galaxy cluster Abell 3827 (2017)
Journal Article
Taylor, P., Massey, R., Jauzac, M., Courbin, F., Harvey, D., Joseph, R., & Robertson, A. (2017). A test for skewed distributions of dark matter, and a possible detection in galaxy cluster Abell 3827. Monthly Notices of the Royal Astronomical Society, 468(4), 5004-5013. https://doi.org/10.1093/mnras/stx855

Simulations of self-interacting dark matter predict that dark matter should lag behind galaxies during a collision. If the interaction is mediated by a high-mass force carrier, the distribution of dark matter can also develop asymmetric dark matter t... Read More about A test for skewed distributions of dark matter, and a possible detection in galaxy cluster Abell 3827.

Mapping substructure in the HST Frontier Fields cluster lenses and in cosmological simulations (2017)
Journal Article
Natarajan, P., Chadayammuri, U., Jauzac, M., Richard, J., Kneib, J., Ebeling, H., …Vogelsberger, M. (2017). Mapping substructure in the HST Frontier Fields cluster lenses and in cosmological simulations. Monthly Notices of the Royal Astronomical Society, 468(2), 1962-1980. https://doi.org/10.1093/mnras/stw3385

We map the lensing-inferred substructure in the first three clusters observed by the Hubble Space Telescope Frontier Fields (HSTFF) Initiative: Abell 2744 (z = 0.308), MACSJ 0416, (z = 0.396) and MACSJ 1149 (z = 0.543). Statistically resolving dark m... Read More about Mapping substructure in the HST Frontier Fields cluster lenses and in cosmological simulations.

Abell 2744: too much substructure for ΛCDM? (2017)
Journal Article
Schwinn, J., Jauzac, M., Baugh, C., Bartelmann, M., Eckert, D., Harvey, D., …Massey, R. (2017). Abell 2744: too much substructure for ΛCDM?. Monthly Notices of the Royal Astronomical Society, 467(3), 2913-2923. https://doi.org/10.1093/mnras/stx277

The massive substructures found in Abell 2744 by Jauzac et al. present a challenge to the cold dark matter paradigm due to their number and proximity to the cluster centre. We use one of the biggest N-body simulations, the Millennium XXL, to investig... Read More about Abell 2744: too much substructure for ΛCDM?.

The Extraordinary Amount of Substructure in the Hubble Frontier Fields Cluster Abell 2744 (2016)
Journal Article
Jauzac, M., Eckert, D., Schwinn, J., Harvey, D., Baugh, C., Robertson, A., …Tchernin, C. (2016). The Extraordinary Amount of Substructure in the Hubble Frontier Fields Cluster Abell 2744. Monthly Notices of the Royal Astronomical Society, 463(4), 3876-3893. https://doi.org/10.1093/mnras/stw2251

We present a joint optical/X-ray analysis of the massive galaxy cluster Abell 2744 (z=0.308). Our strong- and weak-lensing analysis within the central region of the cluster, i.e., at R < 1 Mpc from the brightest cluster galaxy, reveals eight substruc... Read More about The Extraordinary Amount of Substructure in the Hubble Frontier Fields Cluster Abell 2744.

Hubble Frontier Fields: predictions for the return of SN Refsdal with the MUSE and GMOS spectrographs (2016)
Journal Article
Jauzac, M., Richard, J., Limousin, M., Knowles, K., Mahler, G., Smith, G., …Rexroth, M. (2016). Hubble Frontier Fields: predictions for the return of SN Refsdal with the MUSE and GMOS spectrographs. Monthly Notices of the Royal Astronomical Society, 457(2), 2029-2042. https://doi.org/10.1093/mnras/stw069

We present a high-precision mass model of the galaxy cluster MACS J1149.6+ 2223, based on a strong gravitational lensing analysis of Hubble Space Telescope Frontier Fields (HFF) imaging data and spectroscopic follow-up with Gemini/Gemini Multi-Object... Read More about Hubble Frontier Fields: predictions for the return of SN Refsdal with the MUSE and GMOS spectrographs.

Warm-hot baryons comprise 5-10 per cent of filaments in the cosmic web (2015)
Journal Article
Eckert, D., Jauzac, M., Shan, H., Kneib, J., Erben, T., Israel, H., …Tchernin, C. (2015). Warm-hot baryons comprise 5-10 per cent of filaments in the cosmic web. Nature, 528, 105-107. https://doi.org/10.1038/nature16058

Observations of the cosmic microwave background indicate that baryons account for 5 per cent of the Universe’s total energy content1. In the local Universe, the census of all observed baryons falls short of this estimate by a factor of two2, 3. Cosmo... Read More about Warm-hot baryons comprise 5-10 per cent of filaments in the cosmic web.

LoCuSS: Testing hydrostatic equilibrium in galaxy clusters (2015)
Journal Article
Smith, G., Mazzotta, P., Okabe, N., Ziparo, F., Mulroy, S., Babul, A., …Umetsu, K. (2016). LoCuSS: Testing hydrostatic equilibrium in galaxy clusters. Monthly Notices of the Royal Astronomical Society: Letters, 456(1), L74-L78. https://doi.org/10.1093/mnrasl/slv175

We test the assumption of hydrostatic equilibrium in an X-ray luminosity selected sample of 50 galaxy clusters at 0.15 < z < 0.3 from the Local Cluster Substructure Survey (LoCuSS). Our weak-lensing measurements of M500 control systematic biases to s... Read More about LoCuSS: Testing hydrostatic equilibrium in galaxy clusters.

Are ultra-faint galaxies at z = 6–8 responsible for cosmic reionization? Combined constraints from the Hubble Frontier Fields clusters and parallels (2015)
Journal Article
Atek, H., Richard, J., Jauzac, M., Kneib, J., Natarajan, P., Limousin, M., …Clément, B. (2015). Are ultra-faint galaxies at z = 6–8 responsible for cosmic reionization? Combined constraints from the Hubble Frontier Fields clusters and parallels. Astrophysical Journal, 814(1), Article 69. https://doi.org/10.1088/0004-637x/814/1/69

We use deep Hubble Space Telescope imaging of the Frontier Fields to accurately measure the galaxy rest-frame ultraviolet luminosity function (UV LF) in the redshift range z ~ 6–8. We combine observations in three lensing clusters, A2744, MACS 0416,... Read More about Are ultra-faint galaxies at z = 6–8 responsible for cosmic reionization? Combined constraints from the Hubble Frontier Fields clusters and parallels.

Illuminating a Dark Lens : A Type Ia Supernova Magnified by the Frontier Fields Galaxy Cluster Abell 2744 (2015)
Journal Article
Rodney, S., Patel, B., Scolnic, D., Foley, R., Molino, A., Brammer, G., …Zitrin, A. (2015). Illuminating a Dark Lens : A Type Ia Supernova Magnified by the Frontier Fields Galaxy Cluster Abell 2744. Astrophysical Journal, 811(1), Article 70. https://doi.org/10.1088/0004-637x/811/1/70

SN HFF14Tom is a Type Ia SN discovered at $z=1.3457\pm 0.0001$ behind the galaxy cluster Abell 2744 (z = 0.308). In a cosmology-independent analysis, we find that HFF14Tom is 0.77 ± 0.15 mag brighter than unlensed Type Ia SNe at similar redshift, imp... Read More about Illuminating a Dark Lens : A Type Ia Supernova Magnified by the Frontier Fields Galaxy Cluster Abell 2744.

Hubble Frontier Fields: a high-precision strong-lensing analysis of the massive galaxy cluster Abell 2744 using ∼180 multiple images (2015)
Journal Article
Jauzac, M., Richard, J., Jullo, E., Clément, B., Limousin, M., Kneib, J., …Rexroth, M. (2015). Hubble Frontier Fields: a high-precision strong-lensing analysis of the massive galaxy cluster Abell 2744 using ∼180 multiple images. Monthly Notices of the Royal Astronomical Society, 452(2), 1437-1446. https://doi.org/10.1093/mnras/stv1402

We present a high-precision mass model of galaxy cluster Abell 2744, based on a strong gravitational-lensing analysis of the Hubble Space Telescope Frontier Fields (HFF) imaging data, which now include both Advanced Camera for Surveys and Wide Field... Read More about Hubble Frontier Fields: a high-precision strong-lensing analysis of the massive galaxy cluster Abell 2744 using ∼180 multiple images.

The behaviour of dark matter associated with four bright cluster galaxies in the 10 kpc core of Abell 3827 (2015)
Journal Article
Massey, R., Williams, L., Smit, R., Swinbank, M., Kitching, D., Harvey, D., …Tittley, E. (2015). The behaviour of dark matter associated with four bright cluster galaxies in the 10 kpc core of Abell 3827. Monthly Notices of the Royal Astronomical Society, 449(4), 3393-3406. https://doi.org/10.1093/mnras/stv467

Galaxy cluster Abell 3827 hosts the stellar remnants of four almost equally bright elliptical galaxies within a core of radius 10 kpc. Such corrugation of the stellar distribution is very rare, and suggests recent formation by several simultaneous me... Read More about The behaviour of dark matter associated with four bright cluster galaxies in the 10 kpc core of Abell 3827.

New Constraints on the Faint End of the UV Luminosity Function at z ~ 7-8 Using the Gravitational Lensing of the Hubble Frontier Fields Cluster A2744 (2015)
Journal Article
Atek, H., Richard, J., Kneib, J., Jauzac, M., Schaerer, D., Clément, B., …Ebeling, H. (2015). New Constraints on the Faint End of the UV Luminosity Function at z ~ 7-8 Using the Gravitational Lensing of the Hubble Frontier Fields Cluster A2744. Astrophysical Journal, 800(1), https://doi.org/10.1088/0004-637x/800/1/18

Exploiting the power of gravitational lensing, the Hubble Frontier Fields (HFF) program aims at observing six massive galaxy clusters to explore the distant universe far beyond the limits of blank field surveys. Using the complete Hubble Space Telesc... Read More about New Constraints on the Faint End of the UV Luminosity Function at z ~ 7-8 Using the Gravitational Lensing of the Hubble Frontier Fields Cluster A2744.

Hubble Frontier Fields : the geometry and dynamics of the massive galaxy cluster merger MACSJ0416.1−2403 (2014)
Journal Article
Jauzac, M., Jullo, E., Eckert, D., Ebeling, H., Richard, J., Limousin, M., …Rexroth, M. (2015). Hubble Frontier Fields : the geometry and dynamics of the massive galaxy cluster merger MACSJ0416.1−2403. Monthly Notices of the Royal Astronomical Society, 446(4), 4132-4147. https://doi.org/10.1093/mnras/stu2425

We use a joint optical/X-ray analysis to constrain the geometry and history of the ongoing merging event in the massive galaxy cluster MACSJ0416.1-2403 (z=0.397). Our investigation of cluster substructure rests primarily on a combined strong- and wea... Read More about Hubble Frontier Fields : the geometry and dynamics of the massive galaxy cluster merger MACSJ0416.1−2403.

Mass and magnification maps for the Hubble Space Telescope Frontier Fields clusters: implications for high-redshift studies (2014)
Journal Article
Richard, J., Jauzac, M., Limousin, M., Jullo, E., Clément, B., Ebeling, H., …Bower, R. (2014). Mass and magnification maps for the Hubble Space Telescope Frontier Fields clusters: implications for high-redshift studies. Monthly Notices of the Royal Astronomical Society, 444(1), 268-289. https://doi.org/10.1093/mnras/stu1395

Extending over three Hubble Space Telescope (HST) cycles, the Hubble Frontier Fields (HFF) initiative constitutes the largest commitment ever of HST time to the exploration of the distant Universe via gravitational lensing by massive galaxy clusters.... Read More about Mass and magnification maps for the Hubble Space Telescope Frontier Fields clusters: implications for high-redshift studies.

Hubble Frontier Fields: a high-precision strong-lensing analysis of galaxy cluster MACSJ0416.1-2403 using ∼200 multiple images (2014)
Journal Article
Jauzac, M., Clément, B., Limousin, M., Richard, J., Jullo, E., Ebeling, H., …Rexroth, M. (2014). Hubble Frontier Fields: a high-precision strong-lensing analysis of galaxy cluster MACSJ0416.1-2403 using ∼200 multiple images. Monthly Notices of the Royal Astronomical Society, 443(2), 1549-1554. https://doi.org/10.1093/mnras/stu1355

We present a high-precision mass model of the galaxy cluster MACSJ0416.1-2403, based on a strong-gravitational-lensing analysis of the recently acquired Hubble Space Telescope Frontier Fields (HFF) imaging data. Taking advantage of the unprecedented... Read More about Hubble Frontier Fields: a high-precision strong-lensing analysis of galaxy cluster MACSJ0416.1-2403 using ∼200 multiple images.

Probing the z > 6 Universe with the First Hubble Frontier Fields Cluster A2744 (2014)
Journal Article
Atek, H., Richard, J., Kneib, J., Clément, B., Egami, E., Ebeling, H., …Natarajan, P. (2014). Probing the z > 6 Universe with the First Hubble Frontier Fields Cluster A2744. Astrophysical Journal, 786(1), https://doi.org/10.1088/0004-637x/786/1/60

The Hubble Frontier Fields program combines the capabilities of the Hubble Space Telescope (HST) with the gravitational lensing of massive galaxy clusters to probe the distant universe to an unprecedented depth. Here, we present the results of the fi... Read More about Probing the z > 6 Universe with the First Hubble Frontier Fields Cluster A2744.

Weak Lensing galaxy cluster field reconstruction (2013)
Journal Article
Jullo, E., Pire, S., Jauzac, M., & Kneib, J. (2014). Weak Lensing galaxy cluster field reconstruction. Monthly Notices of the Royal Astronomical Society, 437(4), 3969-3979. https://doi.org/10.1093/mnras/stt2207

In this paper, we compare three methods to reconstruct galaxy cluster density fields with weak lensing data. The first method called FLens integrates an inpainting concept to invert the shear field with possible gaps, and a multi-scale entropy denois... Read More about Weak Lensing galaxy cluster field reconstruction.