A synthetic Roman Space Telescope High-Latitude Time-Domain Survey: supernovae in the deep field

Wang, Kevin X.; Scolnic, Dan; Troxel, M. A.; Rodney, Steven A.; Popovic, Brodie; Duff, Caleb; Filippenko, Alexei V.; Foley, Ryan J.; Hounsell, Rebekah; Jha, Saurabh W.; Jones, David O.; Joshi, Bhavin A.; Long, Heyang; Macias, Phillip; Riess, Adam G.; Rose, Benjamin M.; Yamamoto, Masaya

doi:10.1093/mnras/stad1652

A synthetic Roman Space Telescope High-Latitude Time-Domain Survey: supernovae in the deep field

Journal Article · Fri Jun 02 00:00:00 EDT 2023 · Monthly Notices of the Royal Astronomical Society

DOI:https://doi.org/10.1093/mnras/stad1652· OSTI ID:2419957

Wang, Kevin X. ^[1]; ; ; Rodney, Steven A.; Popovic, Brodie; Duff, Caleb; Filippenko, Alexei V.; Foley, Ryan J.; Hounsell, Rebekah; ; Jones, David O.; Joshi, Bhavin A.; Long, Heyang; Macias, Phillip; Riess, Adam G.; ;

OSTI

ABSTRACT

NASA will launch the Nancy Grace Roman Space Telescope (hereafter Roman) in the second half of this decade, which will allow for a generation-defining measurement of dark energy through multiple probes, including Type Ia supernovae (SNe Ia). To improve decisions on survey strategy, we have created the first simulations of realistic Roman images that include artificial SNe Ia injected as point sources in the images. Our analysis combines work done on Roman simulations for weak gravitational lensing studies as well as catalogue-level simulations of SN Ia samples. We have created a time series of images over 2 yr containing ∼1050 SNe Ia, covering a 1 deg2 subarea of a planned 5 deg2 deep survey. We have released these images publicly for community use along with input catalogues of all injected sources. We create secondary products from these images by generating coadded images and demonstrating recovery of transient sources using image subtraction. We perform first-use analyses on these images in order to measure galaxy detection efficiency, point source detection efficiency, and host-galaxy association biases. The simulated images can be found here at https://roman.ipac.caltech.edu/sims/SN_Survey_Image_sim.html.

View Accepted Manuscript (DOE)

Research Organization:: Duke Univ., Durham, NC (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

Grant/Contract Number:: SC0010007

OSTI ID:: 2419957

Journal Information:: Monthly Notices of the Royal Astronomical Society, Journal Name: Monthly Notices of the Royal Astronomical Society Journal Issue: 3 Vol. 523; ISSN 0035-8711

Publisher:: Oxford University PressCopyright Statement

Country of Publication:: United States

Language:: English

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