Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998tx19.confe.594a&link_type=abstract
Abstracts of the 19th Texas Symposium on Relativistic Astrophysics and Cosmology, held in Paris, France, Dec. 14-18, 1998. Eds.:
Astronomy and Astrophysics
Astrophysics
Scientific paper
It is constructed the model of radio evolution of SNRs in the "hot" phase of the ISM based on the assumption that radio emitting electrons are accelerated at the main shock diffusively. To take into consideration the possibility of deviation of the shock structure, due to the finite external pressure at small Mach numbers, from the Sedov self-similar solution Cox-Anderson analytical approximation is used. It is found that during the evolution of SNR its radio spectral index remains bounded by the maximal value of 0.75. Though it is difficult to identify such extended SNRs observationally but large number of them can contribute to the galactic nonthermal background radio emission. Closeness of the predicted value of the spectral index for the extended SNR to the observed background spectral indices can be used as a fact in favor of such possibility.
No associations
LandOfFree
Extended SNRs and Background Radio Emission of Galaxy does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Extended SNRs and Background Radio Emission of Galaxy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extended SNRs and Background Radio Emission of Galaxy will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-770187