Outputs (7)

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., Clark, P., English, J., Everett, S. W., Fraisse, A. A., Franco, H., Hartley, J. W., Harvey, D., Holder, B., Hunter, A., Huff, E. M., Hynous, A., Jauzac, M., Jones, W. C., Joyce, N., …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.

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., Massey, R. J., Benton, S. J., Brown, A. M., Clark, P., Holder, B., Fraisse, A. A., Jauzac, M., Jones, W. C., Lagattuta, D., Leung, J. S.-Y., Li, L., T. Luu, T. V., Nagy, J. M., Netterfield, C. B., …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.

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.

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.

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.

The Projected Dark and Baryonic Ellipsoidal Structure of 20 CLASH Galaxy Clusters (2018)
Journal Article
Umetsu, K., Sereno, M., Tam, S., Chiu, I., Fan, Z., Ettori, S., …Seitz, S. (2018). The Projected Dark and Baryonic Ellipsoidal Structure of 20 CLASH Galaxy Clusters. Astrophysical Journal, 860(2), Article 104. https://doi.org/10.3847/1538-4357/aac3d9

We reconstruct the two-dimensional (2D) matter distributions in 20 high-mass galaxy clusters selected from the CLASH survey by using the new approach of performing a joint weak gravitational lensing analysis of 2D shear and azimuthally averaged magni... Read More about The Projected Dark and Baryonic Ellipsoidal Structure of 20 CLASH Galaxy Clusters.