Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007auhe.conf...31t&link_type=abstract
ASTROPHYSICS AT ULTRA-HIGH ENERGIES. Proceedings of the 15th Course of the International School of Cosmic Ray Astrophysics . Hel
Astronomy and Astrophysics
Astrophysics
Supernova Remnants: Evolution, X-Ray Radiation, Γ-Ray Radiation, Cosmic Ray Acceleration, Interstellar Medium: General
Scientific paper
Between the well known adiabatic and radiative stages of the Supernova remnant (SNR) evolution there is, in fact, a transition stage with a duration comparable to the duration of adiabatic one. Physical existence of the transition stage is motivated by cooling of some part of the downstream hot gas with formation of a thin cold shell that is joined to a shell of swept up interstellar medium (ISM). We give an approximate analytical method for full hydrodynamic description of the transition stage. On its base we investigate the evolution of X-ray and γ-ray radiation during this stage. The role of the transition stage in cosmic ray (CR) re-acceleration is discussed as well.
Hnatyk B. I.
Telezhinsky I. O.
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