SN 2020jgb: A Peculiar Type Ia Supernova Triggered by a Helium-shell Detonation in a Star-forming Galaxy

SN 2020jgb: A Peculiar Type Ia Supernova Triggered by a Helium-shell Detonation in a Star-forming Galaxy

The detonation of a thin (≲0.03 M _⊙ ) helium shell (He-shell) atop a ∼1 M _⊙ white dwarf (WD) is a promising mechanism to explain normal Type Ia supernovae (SNe Ia), while thicker He-shells and less massive WDs may explain some recently observed peculiar SNe Ia. We present observations of SN 2020jg...

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Bibliographic Details
Main Authors: Chang Liu, Adam A. Miller, Abigail Polin, Anya E. Nugent, Kishalay De, Peter E. Nugent, Steve Schulze, Avishay Gal-Yam, Christoffer Fremling, Shreya Anand, Igor Andreoni, Peter Blanchard, Thomas G. Brink, Suhail Dhawan, Alexei V. Filippenko, Kate Maguire, Tassilo Schweyer, Huei Sears, Yashvi Sharma, Matthew J. Graham, Steven L. Groom, David Hale, Mansi M. Kasliwal, Frank J. Masci, Josiah Purdum, Benjamin Racine, Jesper Sollerman, Shrinivas R. Kulkarni
Format: Article
Language:English
Published: IOP Publishing 2023-01-01
Series:The Astrophysical Journal
Subjects:
Supernovae
Type Ia supernovae
White dwarf stars
Observational astronomy
Surveys
Online Access:https://doi.org/10.3847/1538-4357/acbb5e

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