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SN 1997bs - Wikipedia
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SN 1997bs
Image of the host galaxy Messier 66
Event typeSupernova Edit this on Wikidata
subluminous type lln
InstrumentLOSS
ConstellationLeo Edit this on Wikidata
Distance31 million ly
HostMessier 66
Progenitor typeLuminous blue variable
Notable featuresExtragalactic Eta Carinae analog that may have survived the supernova
Other designationsSN 1997bs
[edit on Wikidata]

SN 1997bs was a subluminous type II supernova that occurred in the intermediate spiral galaxy Messier 66, about 31 million light years from Earth, in April of 1997. The progenitor star that produced this supernova was a massive luminous blue variable that was similar to the star Eta Carinae. This star was not associated with an H II region or any nearby massive stars. It is possible that the star that produced SN 1997bs survived the explosion and is hidden in a thick shell of dust with a mass of around 1 solar mass.[1][2]

Light curves for SN 1997bs in four photometric bands, plotted from data published by Van Dyk et al. (2000)[1]

SN 1997bs was the first supernova discovered by the Lick Observatory Supernova Search (LOSS).[1]

References

  1. ^ a b c Van Dyk, Schuyler D.; Peng, Chien Y.; King, Jennifer Y.; Filippenko, Alexei V.; Treffers, Richard R.; Li, Weidong; Richmond, Michael W. (December 2000). "SN 1997bs in M66: Another Extragalactic η Carinae Analog?". Publications of the Astronomical Society of the Pacific. 112 (778): 1532–1541. arXiv:astro-ph/0009027. Bibcode:2000PASP..112.1532V. doi:10.1086/317727. ISSN 0004-6280.
  2. ^ Adams, Scott M.; Kochanek, C. S. (2015). "LOSS's first supernova? New limits on the 'impostor' SN 1997bs". Monthly Notices of the Royal Astronomical Society. 452 (2): 2195–2207. arXiv:1502.00001. doi:10.1093/mnras/stv1409.
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