Roman CCS White Paper: Identifying high-redshift pair-instability supernovae by adding sparse F213 filter observations

Takashi Moriya; Ori D. Fox; Robert Quimby; Steve Schulze; Ashley Villar; Armin Rest; Norman Grogin; Sebastian Gomez; David Rubin; Matt Siebert; Susan Kassin; Eniko Regos; Lou Strolger; Anton Koekemoer; Steven Finkelstein; Suvi Gezari; Seppo Mattila; Tea Temim; Melissa Shahbandeh; Bob Williams; Ting-Wan Chen; Isobel Hook; Justin Pierel; Masami Ouchi; Yuichi Harikane

arXiv · 2306.17212

Roman CCS White Paper: Identifying high-redshift pair-instability supernovae by adding sparse F213 filter observations

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Abstract

Pair-instability supernovae (PISNe) are explosions of very massive stars that may have played a critical role in the chemical evolution and reionization of the early Universe. In order to quantify their roles, it is required to know the PISN event rate at z > 6. Although Roman Space Telescope has a capability to discover PISNe at z > 6, identifying rare high-redshift PISN candidates among many other transients is challenging. In order to efficiently identify PISN candidates at z > 6, we propose to add sparse F213 observations reaching 26.5 mag (or deeper) every half year in the High Latitude Time Domain Survey. By adding the F213 information, PISNe at z > 6 can be efficiently identified in the color-magnitude diagram.

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Takashi Moriya, Ori D. Fox, Robert Quimby, Steve Schulze, Ashley Villar, Armin Rest, Norman Grogin, Sebastian Gomez, David Rubin, Matt Siebert, Susan Kassin, Eniko Regos, Lou Strolger, Anton Koekemoer, Steven Finkelstein, Suvi Gezari, Seppo Mattila, Tea Temim, Melissa Shahbandeh, Bob Williams, Ting-Wan Chen, Isobel Hook, Justin Pierel, Masami Ouchi, Yuichi Harikane. 2023-06-29. Roman CCS White Paper: Identifying high-redshift pair-instability supernovae by adding sparse F213 filter observations. https://arxiv.org/abs/2306.17212

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