Supernovae and the AP phenomenon

Details Supernovae and the AP phenomenon Supernovae and the AP phenomenon

Dec 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980japa....1..155r&link_type=abstract

Journal of Astrophysics and Astronomy, vol. 1, Dec. 1980, p. 155-164.

Astronomy and Astrophysics

Astrophysics

5

A Stars, Magnetic Stars, Star Clusters, Stellar Evolution, Stellar Mass Accretion, Supernovae, Abundance, Hydrogen Clouds, Interstellar Gas, Main Sequence Stars, Scorpius Constellation, Stellar Envelopes, Stellar Magnetic Fields, Stellar Rotation

Scientific paper

We put forward evidence that relates the phenomenon of the chemically peculiar stars of the upper main sequence to supernovae explosions in young clusters. In the Upper Scorpius region we find that a supernova shell has interacted with dense clouds and that the peculiar stars lie close to or along the edges of interaction. We argue that the stars at or near the cloud faces are capable of acquiring this enriched material which is sufficiently slowed down. The magnetic accretion process of Havnes and Conti provides the mechanism of acquisition. This process with the associated magnetic braking accounts for the build-up in abundance anomalies and the slowing down of rotation with age.

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