%ADong 董, Yuxin%AMilisavljevic, Dan%ALeja, Joel%ASarbadhicary, Sumit%ANugent, Anya%AMargutti, Raffaella%AJacobson-Galán, Wynn%APolin, Abigail%ABanovetz, John%AReynolds, Jack%ASubrayan, Bhagya%BJournal Name: The Astrophysical Journal; Journal Volume: 927; Journal Issue: 2; Related Information: CHORUS Timestamp: 2024-01-16 13:54:46 %D2022%IDOI PREFIX: 10.3847 %JJournal Name: The Astrophysical Journal; Journal Volume: 927; Journal Issue: 2; Related Information: CHORUS Timestamp: 2024-01-16 13:54:46 %K %MOSTI ID: 10364396 %PMedium: X; Size: Article No. 199 %TPhysical Properties of the Host Galaxies of Ca-rich Transients %X
Calcium-rich (Ca-rich) transients are a new class of supernovae (SNe) that are known for their comparatively rapid evolution, modest peak luminosities, and strong nebular calcium emission lines. Currently, the progenitor systems of Ca-rich transients remain unknown. Although they exhibit spectroscopic properties not unlike core-collapse Type Ib/c SNe, nearly half are found in the outskirts of their host galaxies, which are predominantly elliptical, suggesting a closer connection to the older stellar populations of SNe Ia. In this paper, we present a compilation of publicly available multiwavelength observations of all known and/or suspected host galaxies of Ca-rich transients ranging from far-UV to IR, and use these data to characterize their stellar populations with