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Radio Supernovae: The Detection of SN 1961V in NGC 1058

Published online by Cambridge University Press:  12 April 2016

John J. Cowan ,
Richard B. C. Henry  and
David Branch
John J. Cowan
Affiliation:
University of Oklahoma, Norman, OK
Richard B. C. Henry
Affiliation:
University of Oklahoma, Norman, OK
David Branch
Affiliation:
University of Oklahoma, Norman, OK

Abstract

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We report the radio detection of supernova 1961v in NGC 1058. SN 1961v has a spectral index of -0.4 ± 0.1. At the distance of NGC 1058, the absolute monochromatic luminosity of this source is comparable to that of Cas A. A second nonthermal source with a spectral index of -0.3 ± 0.1 was also detected in NGC 1058 and is likely to be a remnant of a supernova that was not optically detected. The two radio sources, and two optically faint H II regions that coincide with the radio sources, are separated by only 3.5".

Type
Research Article
Information
International Astronomical Union Colloquium , Volume 101: Supernova Remnants and the Interstellar Medium , 1988 , pp. 23 - 26
Copyright
Copyright © Cambridge University Press 1988

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