Professor Richard Massey's Outputs (193)

The distribution of dark matter and gas spanning 6 Mpc around the post-merger galaxy cluster MS 0451-03 (2020)
Journal Article
Tam, S.-I., Jauzac, M., Massey, R., Harvey, D., Eckert, D., Ebeling, H., Ellis, R., Ghirardini, V., Klein, B., Kneib, J.-P., Lagattuta, D., Natarajan, P., Robertson, A., & 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.

Euclid: Reconstruction of weak-lensing mass maps for non-Gaussianity studies (2020)
Journal Article
Pires, S., Vandenbussche, V., Kansal, V., Bender, R., Blot, L., Bonino, D., Boucaud, A., Brinchmann, J., Capobianco, V., Carretero, J., Castellano, M., Cavuoti, S., Clédassou, R., Congedo, G., Conversi, L., Corcione, L., Dubath, F., Fosalba, P., Frailis, M., Franceschi, E., …Wang, Y. (2020). Euclid: Reconstruction of weak-lensing mass maps for non-Gaussianity studies. Astronomy & Astrophysics, 638, Article A141. https://doi.org/10.1051/0004-6361/201936865

Weak lensing, which is the deflection of light by matter along the line of sight, has proven to be an efficient method for constraining models of structure formation and reveal the nature of dark energy. So far, most weak-lensing studies have focused... Read More about Euclid: Reconstruction of weak-lensing mass maps for non-Gaussianity studies.

Validation of PSF Models for HST and Other Space-Based Observations (2020)
Journal Article
Gillis, B. R., Schrabback, T., Marggraf, O., Mandelbaum, R., Massey, R., Rhodes, J., & Taylor, A. (2020). Validation of PSF Models for HST and Other Space-Based Observations. Monthly Notices of the Royal Astronomical Society, 496(4), 5017-5038. https://doi.org/10.1093/mnras/staa1818

Forthcoming space-based observations will require high-quality point-spread function (PSF) models for weak gravitational lensing measurements. One approach to generating these models is using a wavefront model based on the known telescope optics. We... Read More about Validation of PSF Models for HST and Other Space-Based Observations.

Mapping dark matter and finding filaments: calibration of lensing analysis techniques on simulated data (2020)
Journal Article
Tam, S.-I., 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.

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., Eifler, T., Fraisse, A., Frenk, C., Funk, M., Galloway, M., Gill, A., Hartley, J., Holder, B., Huff, E., Jauzac, M., Jones, W., Lagattuta, D., Leung, J.-Y., Li, L., …Tam, S.-I. (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.

Euclid: The reduced shear approximation and magnification bias for Stage IV cosmic shear experiments (2020)
Journal Article
Deshpande, A., Kitching, T., Cardone, V., Taylor, P., Casas, S., Camera, S., Carbone, C., Kilbinger, M., Pettorino, V., Sakr, Z., Sapone, D., Tutusaus, I., Auricchio, N., Bodendorf, C., Bonino, D., Brescia, M., Capobianco, V., Carretero, J., Castellano, M., Cavuoti, S., …Zoubian, J. (2020). Euclid: The reduced shear approximation and magnification bias for Stage IV cosmic shear experiments. Astronomy & Astrophysics, 636, Article A95. https://doi.org/10.1051/0004-6361/201937323

Context. Stage IV weak lensing experiments will offer more than an order of magnitude leap in precision. We must therefore ensure that our analyses remain accurate in this new era. Accordingly, previously ignored systematic effects must be addressed.... Read More about Euclid: The reduced shear approximation and magnification bias for Stage IV cosmic shear experiments.

Understanding the large inferred Einstein radii of observed low-mass galaxy clusters (2020)
Journal Article
Robertson, A., Massey, R., & Eke, V. (2020). Understanding the large inferred Einstein radii of observed low-mass galaxy clusters. Monthly Notices of the Royal Astronomical Society, 494(4), 4706-4712. https://doi.org/10.1093/mnras/staa1076

We assess a claim that observed galaxy clusters with mass ∼1014M⊙ are more centrally concentrated than predicted in lambda cold dark matter (ΛCDM). We generate mock strong gravitational lensing observations, taking the lenses from a cosmological hydr... Read More about Understanding the large inferred Einstein radii of observed low-mass galaxy clusters.

Euclid: Nonparametric point spread function field recovery through interpolation on a graph Laplacian (2020)
Journal Article
Schmitz, M., Starck, J.-L., Ngole Mboula, F., Auricchio, N., Brinchmann, J., Vito Capobianco, R., Clédassou, R., Conversi, L., Corcione, L., Fourmanoit, N., Frailis, M., Garilli, B., Hormuth, F., Hu, D., Israel, H., Kermiche, S., Kitching, T., Kubik, B., Kunz, M., Ligori, S., …Zoubian, J. (2020). Euclid: Nonparametric point spread function field recovery through interpolation on a graph Laplacian. Astronomy & Astrophysics, 636, https://doi.org/10.1051/0004-6361/201936094

Context. Future weak lensing surveys, such as the Euclid mission, will attempt to measure the shapes of billions of galaxies in order to derive cosmological information. These surveys will attain very low levels of statistical error, and systematic e... Read More about Euclid: Nonparametric point spread function field recovery through interpolation on a graph Laplacian.

Euclid: the selection of quiescent and star-forming galaxies using observed colours (2020)
Journal Article
Zoubian, J., Wetzstein, M., Wang, Y., Valenziano, L., Toledo-Moreo, R., Tereno, I., Taylor, A., Sureau, F., Serrano, S., Secroun, A., Schneider, P., Sauvage, M., Saglia, R., Rossetti, E., Roncarelli, M., Rhodes, J., Raison, F., Poncet, M., Polenta, G., Pires, S., …Bisigello, L. (2020). Euclid: the selection of quiescent and star-forming galaxies using observed colours. Monthly Notices of the Royal Astronomical Society, 494(2), 2337-2354. https://doi.org/10.1093/mnras/staa885

The Euclid mission will observe well over a billion galaxies out to z ∼ 6 and beyond. This will offer an unrivalled opportunity to investigate several key questions for understanding galaxy formation and evolution. The first step for many of these st... Read More about Euclid: the selection of quiescent and star-forming galaxies using observed colours.

The BUFFALO HST Survey (2020)
Journal Article
Steinhardt, C. L., Jauzac, M., Acebron, A., Atek, H., Capak, P., Davidzon, I., Eckert, D., Harvey, D., Koekemoer, A. M., Lagos, C. D., Mahler, G., Montes, M., Niemiec, A., Nonino, M., Oesch, P., Richard, J., Rodney, S. A., Schaller, M., Sharon, K., Strolger, L.-G., …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.

Euclid preparation: VI. Verifying the performance of cosmic shear experiments [with erratum] (2020)
Journal Article
Paykari, P., Kitching, T., Hoekstra, H., Azzollini, R., Cardone, V., Cropper, M., Duncan, C., Kannawadi, A., Miller, L., Aussel, H., Conti, I., Auricchio, N., Baldi, M., Bardelli, S., Biviano, A., Bonino, D., Borsato, E., Bozzo, E., Branchini, E., Brau-Nogue, S., …Zucca, E. (2020). Euclid preparation: VI. Verifying the performance of cosmic shear experiments [with erratum]. Astronomy & Astrophysics, 638(C2), Article A139. https://doi.org/10.1051/0004-6361/201936980e

Aims. Our aim is to quantify the impact of systematic effects on the inference of cosmological parameters from cosmic shear. Methods. We present an “end-to-end” approach that introduces sources of bias in a modelled weak lensing survey on a galaxy-by... Read More about Euclid preparation: VI. Verifying the performance of cosmic shear experiments [with erratum].

Euclid preparation: VI. Verifying the performance of cosmic shear experiments (2020)
Journal Article
Paykari, P., Kitching, T., Hoekstra, H., Azzollini, R., Cardone, V., Cropper, M., Duncan, C., Kannawadi, A., Miller, L., Aussel, H., Conti, I., Auricchio, N., Baldi, M., Bardelli, S., Biviano, A., Bonino, D., Borsato, E., Bozzo, E., Branchini, E., Brau-Nogue, S., …Zucca, E. (2020). Euclid preparation: VI. Verifying the performance of cosmic shear experiments. Astronomy & Astrophysics, 635, Article A139. https://doi.org/10.1051/0004-6361/201936980

Aims. Our aim is to quantify the impact of systematic effects on the inference of cosmological parameters from cosmic shear. Methods. We present an “end-to-end” approach that introduces sources of bias in a modelled weak lensing survey on a galaxy-by... Read More about Euclid preparation: VI. Verifying the performance of cosmic shear experiments.

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., Fraisse, A. A., Galloway, M. N., Gill, A., Hartley, J. W., Holder, B., Huff, E. M., Jauzac, M., Jones, W. C., Lagattuta, D., Leung, J. S.-Y., Li, L., Luu, T. V. T., Massey, R. J., McCleary, J., …Tam, S.-I. (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.

Euclid preparation: V. Predicted yield of redshift 7 < z < 9 quasars from the wide survey (2019)
Journal Article
Barnett, R., Warren, S., Mortlock, D., Cuby, J.-G., Conselice, C., Hewett, P., Willott, C., Auricchio, N., Balaguera-Antolínez, A., Baldi, M., Bardelli, S., Bellagamba, F., Bender, R., Biviano, A., Bonino, D., Bozzo, E., Branchini, E., Brescia, M., Brinchmann, J., Burigana, C., …Zucca, E. (2019). Euclid preparation: V. Predicted yield of redshift 7 < z < 9 quasars from the wide survey. Astronomy & Astrophysics, 631, Article A85. https://doi.org/10.1051/0004-6361/201936427

We provide predictions of the yield of 7 < z < 9 quasars from the Euclid wide survey, updating the calculation presented in the Euclid Red Book in several ways. We account for revisions to the Euclid near-infrared filter wavelengths; we adopt steeper... Read More about Euclid preparation: V. Predicted yield of redshift 7 < z < 9 quasars from the wide survey.

Precision Projector Laboratory: detector characterization with an astronomical emulation testbed (2019)
Journal Article
Shapiro, C., Smith, R., Huff, E., Plazas, A. A., Rhodes, J., Fucik, J., Goodsall, T., Massey, R., Rowe, B., & Seshadri, S. (2019). Precision Projector Laboratory: detector characterization with an astronomical emulation testbed. Journal of Astronomical Telescopes, Instruments, and Systems, 5(4), Article 041503. https://doi.org/10.1117/1.jatis.5.4.041503

As astronomical observations from space benefit from improved sensitivity, the effectiveness of scientific programs is becoming limited by systematics that often originate in poorly understood image sensor behavior. Traditional, bottom-up detector ch... Read More about Precision Projector Laboratory: detector characterization with an astronomical emulation testbed.

Galaxy structure with strong gravitational lensing: decomposing the internal mass distribution of massive elliptical galaxies (2019)
Journal Article
Nightingale, J., Massey, R., Harvey, D., Cooper, A., Etherington, A., Tam, S.-I., & Hayes, R. (2019). Galaxy structure with strong gravitational lensing: decomposing the internal mass distribution of massive elliptical galaxies. Monthly Notices of the Royal Astronomical Society, 489(2), 2049-2068. https://doi.org/10.1093/mnras/stz2220

We investigate how strong gravitational lensing can test contemporary models of massive elliptical (ME) galaxy formation, by combining a traditional decomposition of their visible stellar distribution with a lensing analysis of their mass distributio... Read More about Galaxy structure with strong gravitational lensing: decomposing the internal mass distribution of massive elliptical galaxies.

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., Li, B., & 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.

Observable tests of self-interacting dark matter in galaxy clusters: BCG wobbles in a constant density core (2019)
Journal Article
Harvey, D., Robertson, A., Massey, R., & McCarthy, I. G. (2019). Observable tests of self-interacting dark matter in galaxy clusters: BCG wobbles in a constant density core. Monthly Notices of the Royal Astronomical Society, 488(2), 1572-1579. https://doi.org/10.1093/mnras/stz1816

Models of cold dark matter (CDM) predict that the distribution of dark matter in galaxy clusters should be cuspy, centrally concentrated. Constant density cores would be strong evidence for beyond CDM physics, such as self-interacting dark matter (SI... Read More about Observable tests of self-interacting dark matter in galaxy clusters: BCG wobbles in a constant density core.

Planetary Giant Impacts: Convergence of High-Resolution Simulations using Efficient Spherical Initial Conditions and SWIFT (2019)
Journal Article
Kegerreis, J., Eke, V., Gonnet, P., Korycansky, D., Massey, R., Schaller, M., & Teodoro, L. (2019). Planetary Giant Impacts: Convergence of High-Resolution Simulations using Efficient Spherical Initial Conditions and SWIFT. Monthly Notices of the Royal Astronomical Society, 487(4), 5029-5040. https://doi.org/10.1093/mnras/stz1606

We perform simulations of giant impacts onto the young Uranus using smoothed particle hydrodynamics (SPH) with over 100 million particles. This 100–1000 × improvement in particle number reveals that simulations with below 107 particles fail to conver... Read More about Planetary Giant Impacts: Convergence of High-Resolution Simulations using Efficient Spherical Initial Conditions and SWIFT.