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What can we learn about Cosmic Rays from the UV, Optical, Radio and X-Ray Observations of Supernova 1979c in M 100?

Published online by Cambridge University Press:  14 August 2015

G.G.C. Palumbo  and
G. Cavallo
G.G.C. Palumbo
Affiliation:
Istituto TESRE del CNR Via De' Castagnoli 1, 40126 Bologna, Italy
G. Cavallo
Affiliation:
Istituto TESRE del CNR Via De' Castagnoli 1, 40126 Bologna, Italy

Extract

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Theories on the Origin of Cosmic Rays almost invariably invoke the Supernova (SN) phenomenon in its early phases as the cause for production and acceleration of high energy particles. So far only optical information about SNe has been available and from it there is no direct evidence of Cosmic Rays. It is not surprising then that models of Cosmic Ray production are still rich in free parameters. On April 19th 1979 a very bright (~12 mag) SN, labelled 1979c, was detected in the relatively nearby galaxy (~16 Mpc) M 100 (≡NGC 4321). This galaxy, incidentally has produced 4 SNe in 78 years. Event 1979c was followed quite intensively in the optical and UV (with IUE) regions of the spectrum as well as observed at radio and X-ray frequencies. A detailed account of these observations is in press (Panagia et al. 1980). Here we summarize only very briefly the results relevant to the present discussion.

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 94: Origin of Cosmic Rays , 1981 , pp. 51 - 52
Copyright
Copyright © Reidel 1981 

References

Cavallo, G. and Pacini, F.: 1980, Astron. and Astrophys., in press.Google Scholar
Ginzburg, V.L. and Syrovatskii, S.I.: 1964, “The Origin of Cosmic Rays”, Pergamon Press.Google Scholar
Mc Kee, C.F.: 1974, Ap. J. 188, 335.Google Scholar
Panagia, N. et al.: 1980, Month. Not. RAS, in press.Google Scholar