Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985ap%26ss.113..213g&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 113, no. 2, July 1985, p. 213-231.
Astronomy and Astrophysics
Astrophysics
Flare Stars, Primary Cosmic Rays, Stellar Activity, Supernovae, Herbig-Haro Objects, Interstellar Matter, Lithium, Milky Way Galaxy, Stellar Evolution, Stellar Flares
Scientific paper
A concept of 'stellar aggregate activity' is advanced. It is shown that the aggregate activity is too high in order to generate cosmic rays. Two conditions lay claim to cosmic ray primary sources: (1) a very large number of sources (about 10,000), and (2) a homogeneous distribution of sources in the Galaxy. Supernovae do not satisfy both those conditions, but stellar aggregates do. The total interstellar medium of the aggregate identifies with a supernova remnant and possesses properties favourable for the acceleration of cosmic rays up to a high energy by statistical mechanisms. The direct suppliers of primary cosmic rays are the flare stars in the aggregates. From the point of view of energetic resources as well as the energetic consistency of cosmic rays, aggregates are equivalent with supernova remnants. The aggregate must also be the source of gamma-rays. The usual UV Cet-type flare stars in the sun's neighborhood do not play any role as sources of primary cosmic rays. The 'aggregate conception' connects the very fact of the existence of cosmic rays with the continued star-formation process in the Galaxy.
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