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Title: A new look at the birthrate of supernova remnants
Authors: Srinivasan, G.
Dwarakanath, K.S.
Keywords: Supernova remnants
Issue Date: 1982
Publisher: Indian Academy of Sciences, Bangalore, India.
Citation: Journal of Astrophysics and Astronomy, 1982, Vol. 3, p351-361.
Abstract: We have reanalysed a homogeneous catalogue of shell-type supernova remnants and we find that the radio data are consistent with a birthrate of one in 22 ± 3 yr. Our approach is based on the secular decrease of surface brightness of the historical remnants whose ages are precisely known. The above-mentioned birthrate is significantly higher than most previous estimates which range from one in 50-150 yr, and is consistent with the supernova rate in our galaxy derived from 'historical - observations, as well as with recent estimates of the pulsar birthrate.
ISSN: 0250-6335
Copyright: Indian Academy of Sciences, Bangalore, India.
Appears in Collections:Research Papers (A&A)

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