Supernova 2020wnt: An Atypical Superluminous Supernova with a Hidden Central Engine

Supernova 2020wnt: An Atypical Superluminous Supernova with a Hidden Central Engine

We present observations of a peculiar hydrogen- and helium-poor stripped-envelope (SE) supernova (SN) 2020wnt, primarily in the optical and near-infrared (near-IR). Its peak absolute bolometric magnitude of −20.9 mag ( L bol, peak = (6.8 ± 0.3) × 10 43 erg s −1 ) and a rise time of 69 days are remin...

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Veröffentlicht in:The Astrophysical journal 2023-07, Vol.951 (1), p.34
Hauptverfasser: Tinyanont, Samaporn, Woosley, Stan E., Taggart, Kirsty, Foley, Ryan J., Yan, Lin, Lunnan, Ragnhild, Davis, Kyle W., Kilpatrick, Charles D., Siebert, Matthew R., Schulze, Steve, Ashall, Chris, Chen, Ting-Wan, De, Kishalay, Dimitriadis, Georgios, Dong, Dillon Z., Fremling, Christoffer, Gagliano, Alexander, Jha, Saurabh W., Jones, David O., Kasliwal, Mansi M., Miao, Hao-Yu, Pan, Yen-Chen, Perley, Daniel A., Ravi, Vikram, Rojas-Bravo, César, Sfaradi, Itai, Sollerman, Jesper, Alarcon, Vanessa, Angulo, Rodrigo, E. Clever, Karoli, Crawford, Payton, Couch, Cirilla, Dandu, Srujan, Dhara, Atirath, Johnson, Jessica, Lai, Zhisen, Smith, Carli
Format: Artikel
Sprache:eng
Schlagworte:
Astrophysics
Carbon monoxide
Core-collapse supernovae
Dust formation
Ejecta
Energy sources
Explosions
Heating
Helium
Hydrogen
Kinetic energy
Light curve
Magnetars
Massive stars
Near infrared radiation
Radio observation
Radioactivity
Spectra
Supernova
Supernovae
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Zusammenfassung:We present observations of a peculiar hydrogen- and helium-poor stripped-envelope (SE) supernova (SN) 2020wnt, primarily in the optical and near-infrared (near-IR). Its peak absolute bolometric magnitude of −20.9 mag ( L bol, peak = (6.8 ± 0.3) × 10 43 erg s −1 ) and a rise time of 69 days are reminiscent of hydrogen-poor superluminous SNe (SLSNe I), luminous transients potentially powered by spinning-down magnetars. Before the main peak, there is a brief peak lasting
ISSN:0004-637X
1538-4357
1538-4357
DOI:10.3847/1538-4357/acc6c3