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Roman CCS White Paper: Measuring Type Ia Supernovae Discovered in the Roman High Latitude Time Domain Survey

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arxiv 2307.02670 v1 pith:VRS534KI submitted 2023-07-05 astro-ph.IM astro-ph.COastro-ph.HE

Rebekah Hounsell , Dan Scolnic , Dillon Brout , Benjamin Rose , Ori Fox , Masao Sako , Phillip Macias , Bhavin Joshi
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Susana Desutua David Rubin Stefano Casertano Saul Perlmutter Greg Aldering Kaisey Mandel Megan Sosey Nao Suzuki Russell Ryan
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keywords romansurveybaselinecasediscussdomainhighlatitude
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We motivate the cosmological science case of measuring Type Ia supernovae with the Nancy Grace Roman Space Telescope as part of the High Latitude Time Domain Survey. We discuss previously stated requirements for the science, and a baseline survey strategy. We discuss the various areas that must still be optimized and point to the other white papers that consider these topics in detail. Overall, the baseline case should enable an exquisite measurement of dark energy using SNe Ia from z=0.1 to z>2, and further optimization should only strengthen this once-in-a-generation experiment.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. OpenAlex reports about 4 citations worldwide. Full citation record

  1. The Hourglass Simulation: A Catalog for the Roman High-Latitude Time-Domain Core Community Survey

    astro-ph.IM 2025-06 conditional novelty 6.0 of 10

    Hourglass simulates the Roman High-Latitude Time-Domain survey catalog, forecasting about 21,700 Type Ia supernovae, 39,000 core-collapse supernovae, and 64,000 total transients with photometry and prism spectra.

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