Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976apj...209..124o&link_type=abstract
Astrophysical Journal, vol. 209, Oct. 1, 1976, pt. 1, p. 124-129.
Astronomy and Astrophysics
Astrophysics
34
Astronomical Models, Detonation Waves, Nebulae, Star Clusters, Stellar Evolution, Supernovae, Cascades, Galactic Structure, Gamma Rays, X Ray Sources
Scientific paper
A number of observed characteristics of OB associations, including their positive total energies and subgroup structure, are explained by the hypothesis that an association is composed of stars formed by compression of interstellar clouds in blast waves of several generations of supernovae. The later-generation supernovae are simply the most massive stars formed by this mechanism in the earlier generations. This supernova cascade process may also be responsible for giant loops such as the North Polar Spur. Enhanced high-energy gamma-ray emission is expected from the loops.
Maran Stephen P.
Ogelman Hakki B.
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