Evolution of supernova remnants with cosmic rays and radiative cooling

Autor(en)

Ernst Dorfi

Abstrakt

Recent numerical models for SNR evolution are presented, including first-order Fermi acceleration with injection of suprathermal particles at the shock wave, heating due to dissipation of AlfveŽn waves in the precursor region and radiative cooling of the thermal plasma. The X-ray fluxes obtained from these SNR models show significant differences depending on the acceleration efficiency of cosmic rays. ?-ray fluxes are calculated originating from p0-decay of pions generated by collisions of the high-energy particles with the thermal plasma. Cooling of the thermal plasma and dissipation of AlfveŽn waves in the precursor are important to determine the final amount of the explosion energy ESN which is transferred into cosmic rays.

Organisation(en)

Institut für Astrophysik

Journal

The Astrophysical Journal Supplement Series

Band

90

Seiten

841-844

Anzahl der Seiten

4

ISSN

0067-0049

Publikationsdatum

1994

Peer-reviewed

Ja

ÖFOS 2012

103003 Astronomie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/41bca94b-9491-4acc-8fe8-a856521359a4