Physics
Scientific paper
Aug 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985icrc....3..171b&link_type=abstract
In NASA. Goddard Space Flight Center 19th Intern. Cosmic Ray conf., Vol. 3 p 171-174 (SEE N85-34862 23-93)
Physics
Abundance, Galactic Radiation, Gamma Rays, Wolf-Rayet Stars, Cosmic Rays, Flux Density, Interstellar Matter, Stellar Evolution, Stellar Oscillations
Scientific paper
The ratio of the number of WR-stars to their OB progenitors appears to be significantly higher in some extragalactic systems than in our Galaxy. This overabundance of Wolf-Rayet-stars can be explained as a consequence of a recent burst of star formation. It is suggested that this burst is the manifestation of a long period nonlinear oscillation in the star formation process, produced by positive feedback effects between young stars and the interstellar medium. Star burst galaxies with large numbers of WR-stars must generate gamma - fluxes but due to the distance, all of them are beyond the reach of present-day ray detectors, except probably 30 Dor.
Bodifee G.
de Loore Camiel
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