SN 1961V - an extragalactic ETA Carinae analog

Details SN 1961V - an extragalactic ETA Carinae analog SN 1961V - an extragalactic ETA Carinae analog

Jul 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...342..908g&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 342, July 15, 1989, p. 908-916. Research supported by the University of Cal

Astronomy and Astrophysics

Astrophysics

83

H Ii Regions, Light Curve, Stellar Mass Ejection, Supermassive Stars, Supernova Remnants, H Alpha Line, Interstellar Extinction, Late Stars, Stellar Evolution, Stellar Luminosity, Variable Stars

Scientific paper

Spectra of the site of the unique type V supernova SN 1961V in NGC 1058 and of two nearby H II regions have been obtained. Broad H-alpha emission with a luminosity of 2 x 10 to the 36th ergs/s is detected at the position, so that SN 1961V becomes the first historical extragalactic object classified as a supernova to be optically recovered. The characteristics and origin of the high-excitation H II regions of the site are discussed. It is argued that SN 1961V was not a supernova, but an exaggerated Eta Carinae-type outburst of a very massive, evolved star near the end of core hydrogen burning.

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