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2. Cosmology with the Roman Space Telescope – multiprobe strategies

Author

Tim Eifler, Hironao Miyatake, Elisabeth Krause, Chen Heinrich, Vivian Miranda, Christopher Hirata, Jiachuan Xu, Shoubaneh Hemmati, Melanie Simet, Peter Capak, Ami Choi, Olivier Doré, Cyrille Doux, Xiao Fang, Rebekah Hounsell, Eric Huff, Hung-Jin Huang, Mike Jarvis, Jeffrey Kruk, Dan Masters, Eduardo Rozo, Dan Scolnic, David N Spergel, Michael Troxel, Anja von der Linden, Yun Wang, David H Weinberg, Lukas Wenzl, and Hao-Yi Wu

Published
2021
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3. The Magnificent Five Images of Supernova Refsdal: Time Delay and Magnification Measurements

Author

Patrick L. Kelly, Steven Rodney, Tommaso Treu, Simon Birrer, Vivien Bonvin, Luc Dessart, Ryan J. Foley, Alexei V. Filippenko, Daniel Gilman, Saurabh Jha, Jens Hjorth, Kaisey Mandel, Martin Millon, Justin Pierel, Stephen Thorp, Adi Zitrin, Tom Broadhurst, Wenlei Chen, Jose M. Diego, Alan Dressler, Or Graur, Mathilde Jauzac, Matthew A. Malkan, Curtis McCully, Masamune Oguri, Marc Postman, Kasper Borello Schmidt, Keren Sharon, Brad E. Tucker, Anja von der Linden, and Joachim Wambsganss

Published
2023
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4. Cosmology with the Roman Space Telescope - Multiprobe Strategies

Author

Tim Eifler, Hironao Miyatake, Elisabeth Krause, Chen Heinrich, Vivian Miranda, Christopher Michael Hirata, Jiachuan Xu, Shoubaneh Hemmati, Melanie Simet, Peter Capak, Ami Choi, Olivier Dore, Cyrille Doux, Xiao Fang, Rebekah Alianora Hounsell, Eric Huff, Hung-Jin Huang, Mike Jarvis, Jeffrey Kruk, Dan Masters, Eduardo Rozo, Dan Scolnic, David N. Spergel, Michael Troxel, Anja von der Linden, Yun Wang, David H Weinberg, Lukas Wenzl, and Hao-Yi Wu

Subjects
Instrumentation And Photography, Astronomy
Abstract

We simulate the scientific performance of the Nancy Grace Roman Space Telescope High Latitude Survey (HLS) on dark energy and modified gravity. The 1.6-yr HLS Reference survey is currently envisioned to image 2000 deg2 in multiple bands to a depthof∼26.5 in Y, J, H and to cover the same area with slit-less spectroscopy beyond z=3. The combination of deep, multiband photometry and deep spectroscopy will allow scientists to measure the growth and geometry of the Universe through a variety of cosmological probes (e.g. weak lensing, galaxy clusters, galaxy clustering, BAO, Type Ia supernova) and, equally, it will allow an exquisite control of observational and astrophysical systematic effects. In this paper, we explore multiprobe strategies that can be implemented, given the telescope’s instrument capabilities. We model cosmological probes individually and jointly and account for correlated systematics and statistical uncertainties due to the higher order moments of the density field. We explore different levels of observational systematics for the HLS survey (photo-z and shear calibration) and ultimately run a joint likelihood analysis in N-dim parameter space. We find that the HLS reference survey alone can achieve a standard dark energy FoM of>300 when including all probes. This assumes no information from external data sets, we assume a flat universe however, and includes realistic assumptions for systematics. Our study of the HLS reference survey should be seen as part of a future community-driven effort to simulate and optimize the science return of the Roman Space Telescope.

Published
2021
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5. Hubble Frontier Field photometric catalogues of Abell 370 and RXC J2248.7−4431: multiwavelength photometry, photometric redshifts, and stellar properties

Author

Maruša Bradač, Kuang-Han Huang, Adriano Fontana, Marco Castellano, Emiliano Merlin, Ricardo Amorín, Austin Hoag, Victoria Strait, Paola Santini, Russell E Ryan, Stefano Casertano, Brian C Lemaux, Lori M Lubin, Kasper B Schmidt, Tim Schrabback, Tommaso Treu, Anja von der Linden, Charlotte A Mason, and Xin Wang

Published
2019
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6. Multiple images of a highly magnified supernova formed by an early-type cluster galaxy lens

Author

Patrick L. Kelly, Steven A. Rodney, Tommaso Treu, Ryan J. Foley, Gabriel Brammer, Kasper B. Schmidt, Adi Zitrin, Alessandro Sonnenfeld, Louis-Gregory Strolger, Or Graur, Alexei V. Filippenko, Saurabh W. Jha, Adam G. Riess, Marusa Bradac, Benjamin J. Weiner, Daniel Scolnic, Matthew A. Malkan, Anja von der Linden, Michele Trenti, Jens Hjorth, Raphael Gavazzi, Adriano Fontana, Julian C. Merten, Curtis McCully, Tucker Jones, Marc Postman, Alan Dressler, Brandon Patel, S. Bradley Cenko, Melissa L. Graham, and Bradley E. Tucker

Published
2015
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