Supernova 1987 A in the Large Magellanic Cloud - Possible s-process enhancements in the progenitor

Details Supernova 1987 A in the Large Magellanic Cloud - Possible s-process enhancements in the progenitor Supernova 1987 A in the Large Magellanic Cloud - Possible s-process enhancements in the progenitor

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...320l.117w&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 320, Sept. 15, 1987, p. L117-L120.

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67

Balmer Series, Barium, Magellanic Clouds, Metallic Stars, Stellar Spectrophotometry, Supernovae, Computational Astrophysics, Neutrinos, Stellar Luminosity

Scientific paper

Absorption lines which appear in the spectrum of SN 1987A are identified as Ba II transitions which are also observed to be strong in classical barium stars. The presence of these lines and similar Sr II transitions argues for s-process element enhancements in the supernova progenitor. The same lines may also be present in some type I supernovae, suggesting the possibility that Ba II stars could be progenitors for some SN I outbursts.

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