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SN 1997ab and its progenitor's wind

Published online by Cambridge University Press:  25 May 2016

Roberto Cid Fernandes
Affiliation:
Departamento de Física, CFM - UFSC, Florianópolis, Brazil
Isabel Salamanca
Affiliation:
Leiden Observatory, Leiden, the Netherlands
Guillermo Tenorio-Tagle
Affiliation:
Institute of Astronomy, University of Cambridge, Cambridge, UK
Roberto J. Terlevich
Affiliation:
Institute of Astronomy, University of Cambridge, Cambridge, UK
Eduardo Telles
Affiliation:
Observatório Nacional - CNPq, Rio de Janeiro, Brazil
Casiana Munõz-Tuñón
Affiliation:
Institute de Astrofísica de Canarias, Tenerife, Spain

Abstract

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SN1997ab belongs to a class of luminous type II SNe which are thought to be powered by the interaction of the shock wave with a dense circumstellar medium. We report the discovery of narrow P-Cygni profiles atop broad Balmer emission lines, an unambiguous signature of a dense and slow circumstellar wind due to mass loss in the final stages of the progenitor's life.

Type
Part 3. Interaction of Wolf-Rayet stars and other hot massive stars with their environment: colliding winds and ring nebulae
Copyright
Copyright © Astronomical Society of the Pacific 1999 

References

Chugai, N.N. 1991, MNRAS 250, 513 CrossRefGoogle Scholar
Cid Fernandes, R. 1999, MNRAS in press Google Scholar
Hagen, H.J., Engels, D., Reimers, D. 1997, A&A 324, L29 Google ScholarPubMed
Salamanca, I., Cid Fernandes, R., Tenorio Tagle, G., Telles, E., Terlevich, R.J., Munõz-Tuñón, C. 1998, MNRAS 300, L17 CrossRefGoogle Scholar
Terlevich, R.J., Tenorio-Tagle, G., Franco, J., Melnick, J. 1992, MNRAS 255, 713 CrossRefGoogle Scholar
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