Does the activity at the galactic center STEM from a recent supernova?

Details Does the activity at the galactic center STEM from a recent supernova? Does the activity at the galactic center STEM from a recent supernova?

Jun 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983pazh....9..345s&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 9, June 1983, p. 345-348) Soviet Astronomy Letters (ISSN 0360-0327), vol. 9, May-June 1

Astronomy and Astrophysics

Astronomy

1

Abundance, Galactic Nuclei, Milky Way Galaxy, Stellar Models, Supernova Remnants, Annihilation Reactions, B Stars, Binary Stars, Neutron Stars, Pair Production, Stellar Evolution, Stellar Magnetic Fields, Stellar Winds

Scientific paper

A whole ensemble of phenomena observed at the galactic center can be understood if a supernova exploded in a massive binary system there about 100 yr ago. The resultant object would be quite similar to SS 433, but much younger and more compact and active. The recent finding of an anomalously high He abundance suggests that the radiating plasma represents an expanding supernova remnant derived from a massive helium star. Intensive e(+/-) pair production in the neutron star magnetosphere would be responsible for the observed 511-keV annihilation line.

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