Adiabatic deceleration of secondary antiprotons in the envelopes of supernova exploding in dense clouds

Details Adiabatic deceleration of secondary antiprotons in the envelopes of supernova exploding in dense clouds Adiabatic deceleration of secondary antiprotons in the envelopes of supernova exploding in dense clouds

Mar 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985ap%26ss.110..337s&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 110, no. 2, March 1985, p. 337-350.

Astronomy and Astrophysics

Astrophysics

8

Adiabatic Conditions, Antiprotons, Interstellar Gas, Molecular Clouds, Stellar Envelopes, Supernova Remnants, Cosmic Rays, Deceleration, Energy Dissipation, Gravitational Collapse, Secondary Emission, Stellar Evolution, Stellar Mass Ejection, Stellar Models

Scientific paper

On the basis of well established cosmic ray propagation models, the expected flux of antiprotons in cosmic rays within the few-hundred MeV region is small by comparison with the observed flux. Observational data are presently approached through the examination of the possibility of antiproton production by supernova (SN) envelopes during the expansion phase and while undergoing the consequent adiabatic deceleration. In the case of the SN explosions in dense clouds treated, the SN remnant is decelerated within a few thousand years, generating may antiprotons whose spectrum can be calculated by taking all energy loss processes into account and examining the remnant's spectral evolution. Attention is also given to the possibility of obtaining the antiproton spectrum with enhanced flux at low energies.

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