SN2019dge: A Helium-rich Ultra-stripped Envelope Supernova

We present observations of ZTF18abfcmjw (SN2019dge), a helium-rich supernova with a fast-evolving light curve indicating an extremely low ejecta mass ( 0.33 M ) and low kinetic energy ( 1.3 × 1050 erg). Early-time (

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Veröffentlicht in:	The Astrophysical journal 2020-09, Vol.900 (1), p.46
Hauptverfasser:	Yao, Yuhan, De, Kishalay, Kasliwal, Mansi M., Ho, Anna Y. Q., Schulze, Steve, Li, Zhihui, Kulkarni, S. R., Fruchter, Andrew, Rubin, David, Perley, Daniel A., Fuller, Jim, Piro, Anthony L., Fremling, C., Bellm, Eric C., Burruss, Rick, Duev, Dmitry A., Feeney, Michael, Gal-Yam, Avishay, Golkhou, V. Zach, Graham, Matthew J., Helou, George, Kupfer, Thomas, Laher, Russ R., Masci, Frank J., Miller, Adam A., Rusholme, Ben, Shupe, David L., Smith, Roger, Sollerman, Jesper, Soumagnac, Maayane T., Zolkower, Jeffry
Format:	Artikel
Sprache:	eng
Schlagworte:	Astrophysics Binary stars Black holes Coalescence Coalescing Core-collapse supernovae Ejecta Emission spectra Helium Kinetic energy Light curve Line spectra Main sequence stars Neutron stars Neutrons Shock cooling Supernova Supernovae Surveys White dwarf stars
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Beschreibung
Zusammenfassung:	We present observations of ZTF18abfcmjw (SN2019dge), a helium-rich supernova with a fast-evolving light curve indicating an extremely low ejecta mass ( 0.33 M ) and low kinetic energy ( 1.3 × 1050 erg). Early-time (
ISSN:	0004-637X 1538-4357 1538-4357
DOI:	10.3847/1538-4357/abaa3d