Morphology of synchrotron emission in young supernova remnants

Details Morphology of synchrotron emission in young supernova remnants Morphology of synchrotron emission in young supernova remnants

2005-07-08

arxiv.org/abs/astro-ph/0507194v1

Astronomy and Astrophysics

Astrophysics

8 pages, 6 figures, Accepted for publication in A&A

Scientific paper

10.1051/0004-6361:20052853

In the framework of test-particle and cosmic-ray modified hydrodynamics, we calculate synchrotron emission radial profiles in young ejecta-dominated supernova remnants (SNRs) evolving in an ambient medium which is uniform in density and magnetic field. We find that, even without any magnetic field amplification by Raleigh-Taylor instabilities, the radio synchrotron emission peaks at the contact discontinuity because the magnetic field is compressed and is larger there than at the forward shock. The X-ray synchrotron emission sharply drops behind the forward shock as the highest energy electrons suffer severe radiative losses.

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