Multiple Peaks and a Long Precursor in the Type IIn Supernova 2021qqp: An Energetic Explosion in a Complex Circumstellar Environment

Multiple Peaks and a Long Precursor in the Type IIn Supernova 2021qqp: An Energetic Explosion in a Complex Circumstellar Environment

We present optical photometry and spectroscopy of the Type IIn supernova (SN) 2021qqp. Its unusual light curve is marked by a long precursor for ≈300 days, a rapid increase in brightness for ≈60 days, and then a sharp increase of ≈1.6 mag in only a few days to a first peak of M _r ≈ −19.5 mag. The l...

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Príomhchruthaitheoirí: Daichi Hiramatsu, Tatsuya Matsumoto, Edo Berger, Conor Ransome, V. Ashley Villar, Sebastian Gomez, Yvette Cendes, Kishalay De, K. Azalee Bostroem, Joseph Farah, D. Andrew Howell, Curtis McCully, Megan Newsome, Estefania Padilla Gonzalez, Craig Pellegrino, Akihiro Suzuki, Giacomo Terreran
Formáid: Alt
Teanga:English
Foilsithe / Cruthaithe: IOP Publishing 2024-01-01
Sraith:The Astrophysical Journal
Ábhair:
Supernovae
Core-collapse supernovae
Type II supernovae
Massive stars
Stellar mass loss
Circumstellar matter
Rochtain ar líne:https://doi.org/10.3847/1538-4357/ad2854

Ar líne

https://doi.org/10.3847/1538-4357/ad2854

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