Journal article
Binary Evolution and the Progenitor of SN 1987A
- Abstract:
- Since the majority of massive stars are members of binary systems, an understanding of the intricacies of binary interactions is essential for understanding the large variety of supernova types and sub-types. I therefore briefly review the basic elements of binary evolution theory and discuss how binary interactions affect the presupernova structure of massive stars and the resulting supernovae. SN 1987A was a highly anomalous supernova, almost certainly because of a previous binary interaction. The most likely scenario at present is that the progenitor was a member of a massive close binary that experienced dynamical mass transfer during its second red-supergiant phase and merged completely with its companion as a consequence. This can naturally explain the three main anomalies of SN 1987A: the blue color of the progenitor, the chemical anomalies and the complex triple-ring nebula.
- Publication status:
- In press
- Peer review status:
- Reviewed (other)
Actions
Authors
- Publisher:
- ArXiv
- Journal:
- ArXiv More from this journal
- Pages:
- 1-12
- Publication date:
- 2017-02-13
- Keywords:
- Pubs id:
-
pubs:681701
- UUID:
-
uuid:0c46254c-16db-43c3-a821-6a7e84b10c8b
- Local pid:
-
pubs:681701
- Source identifiers:
-
681701
- Deposit date:
-
2018-02-13
Terms of use
- Copyright date:
- 2017
- Notes:
- Proceedings for the conference "SN 1987A: Ten Years After", eds. M. M. Phillips and N. B. Suntzeff, which took place in 1997, but which still has to appear in print. Proceedings are made public as a source of historical reference.
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