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Recent Optical Observations of Supernovae

Published online by Cambridge University Press:  30 March 2016

Alexei V. Filippenko
Alexei V. Filippenko*
Affiliation:
Department of Astronomy University of CaliforniaBerkeley, CA 94720 USA

Abstract

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This paper reviews some of the basic optical properties of supernovae (SNe), concentrating on the most interesting new observations. It is emphasized that SNe can be securely subdivided into the two well-known classes (Type I and Type II) only on the basis of their spectra, since the light curves alone can be misleading. Brief interpretations of the spectra and light curves are presented. Spectroscopic and photometric characteristics of “peculiar” Type I supernovae (SNe I-pec), which may be physically distinct from “normal” SNe I, are discussed. Finally, the complete optical spectrum of SN 1985f in NGC 4618 is illustrated, and comparisons are made with the spectra of SNe I and SNe II. No resemblance is found, suggesting that this object belongs to a truly new class (Type III) of SNe. There is, however, very recent evidence that the spectra of SNe I-pec obtained more than eight months past maximum brightness are strikingly similar to that of SN 1985f.

Type
Joint Discussions
Information
Highlights of Astronomy , Volume 7: Highlights of Astronomy. As presented at the XIXth General Assembly of the IAU, 1985 , 1986 , pp. 589 - 598
Copyright
Copyright © Reidel 1986

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