Semi-analytic forecasts for Roman – the beginning of a new era of deep-wide galaxy surveys
dc.contributor.author | Yung, L.Y. Aaron | |
dc.contributor.author | Somerville, Rachel S. | |
dc.contributor.author | Dav´e, Romeel | |
dc.date.accessioned | 2023-03-15T07:31:19Z | |
dc.date.available | 2023-03-15T07:31:19Z | |
dc.date.issued | 2023 | |
dc.description.abstract | The Nancy Grace Roman Space Telescope, NASA’s next flagship observatory, will redefine deep-field galaxy survey with a field of view two orders of magnitude larger than Hubble and an angular resolution of matching quality. These future deep-wide galaxy surveys necessitate new simulations to forecast their scientific output and to optimise survey strategies. In this work, we present five realizations of 2-deg2 lightcones, containing a total of & 25 million simulated galaxies with −16 & MUV & −25 spanning z ∼ 0 to 10. This dataset enables a new set of experiments with the impacts of survey size on the derived galaxy formation and cosmological constraints. The intrinsic and observable galaxy properties are predicted using a well-established, physics-based semi-analytic modelling approach. We provide forecasts for number density, cosmic SFR, field-to-field variance, and angular two-point correlation functions, and demonstrate how the future wide-field surveys will be able to improve these measurements relative to current generation surveys. We also present a comparison between these lightcones and others that have been constructed with empirical models. | en_US |
dc.identifier.citation | Yung, L. Y. A. et al. (2023). Semi-analytic forecasts for Roman – the beginning of a new era of deep-wide galaxy surveys. Monthly Notices of the Royal Astronomical Society, 519(1), 1578-1600. 10.1093/mnras/stac3595 | en_US |
dc.identifier.issn | 1365-2966 | |
dc.identifier.uri | 10.1093/mnras/stac3595 | |
dc.identifier.uri | http://hdl.handle.net/10566/8583 | |
dc.language.iso | en | en_US |
dc.publisher | Oxford University Press | en_US |
dc.subject | Astronomy | en_US |
dc.subject | Physics | en_US |
dc.subject | Galaxies | en_US |
dc.subject | NASA | en_US |
dc.subject | Cosmology | en_US |
dc.title | Semi-analytic forecasts for Roman – the beginning of a new era of deep-wide galaxy surveys | en_US |
dc.type | Article | en_US |
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