SN 1961V - An extragalactic ETA Carinae analog

SN 1961V - An extragalactic ETA Carinae analog

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...

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Veröffentlicht in:The Astrophysical journal 1989-07, Vol.342 (2), p.908-916
Hauptverfasser: Goodrich, Robert W., Stringfellow, Guy S., Penrod, G. Donald, Filippenko, Alexei V.
Format: Artikel
Sprache:eng
Schlagworte:
640102 - Astrophysics & Cosmology- Stars & Quasi-Stellar, Radio & X-Ray Sources
640105 - Astrophysics & Cosmology- Galaxies
ABSORPTION
Astronomy
Astrophysics
BALMER LINES
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
COSMIC RADIO SOURCES
Earth, ocean, space
ERUPTIVE VARIABLE STARS
Exact sciences and technology
H2 REGIONS
INTERSTELLAR SPACE
Late stages of stellar evolution (including black holes)
LUMINOSITY
MASS TRANSFER
OPTICAL PROPERTIES
ORIGIN
PHYSICAL PROPERTIES
SPACE
SPECTRA
STAR EVOLUTION
STARS
SUPERMASSIVE STARS
SUPERNOVA REMNANTS
SUPERNOVAE
VARIABLE STARS
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Beschreibung
Zusammenfassung: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.
ISSN:0004-637X
1538-4357
DOI:10.1086/167646