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arXiv · 2306.17222

Roman CCS White Paper: Optimizing the HLTDS Cadence at Fixed Depth

David Rubin·Ben Rose·Rebekah Hounsell·Masao Sako·Greg Aldering·Dan Scolnic·Saul Perlmutter
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Abstract

The current proposal for the High Latitude Time Domain Survey (HLTDS) is two tiers (wide and deep) of multi-band imaging and prism spectroscopy with a cadence of five days (Rose et al., 2021). The five-day cadence is motivated by the desire to measure mid-redshift SNe where time dilation is modest as well as to better photometrically characterize the transients detected. This white paper does not provide a conclusion as to the best cadence for the HLTDS. Rather, it collects a set of considerations that should be used for a careful study of cadence by a future committee optimizing the Roman survey. This study should optimize the HLTDS for both SN Ia cosmology and other transient science.

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David Rubin, Ben Rose, Rebekah Hounsell, Masao Sako, Greg Aldering, Dan Scolnic, Saul Perlmutter. 2023-06-29. Roman CCS White Paper: Optimizing the HLTDS Cadence at Fixed Depth. https://arxiv.org/abs/2306.17222

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