Astronomy and Astrophysics – Astrophysics
Scientific paper
2006-08-28
Astrophys.J.650:L59-L62,2006
Astronomy and Astrophysics
Astrophysics
12 pages, 4 figures, accepted for publication in ApJ Letters
Scientific paper
10.1086/508615
A nonlinear kinetic theory of cosmic ray (CR) acceleration in supernova remnants is employed to investigate the properties of the remnant SN 1987A. It is shown that a large downstream magnetic field ~10 mG is required to fit the existing observational data. Such a strong field together with the strong shock modification due to CR backreaction provides the steep and concave radioemission spectrum and considerable synchrotron cooling of high energy electrons which diminish their X-ray synchrotron flux below the observed Chandra flux which has to be considered as an upper limit for nonthermal X-ray emission. The expected gamma-ray energy flux at TeV-energies at the current epoch is 2x10^{-13} erg/(cm^2 s).
Berezhko Evgeny G.
Ksenofontov Leonid T.
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