Evidence for Efficient Cosmic Ray Acceleration in SN 1006

Details Evidence for Efficient Cosmic Ray Acceleration in SN 1006 Evidence for Efficient Cosmic Ray Acceleration in SN 1006

Jul 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003icrc....4.2441b&link_type=abstract

Proceedings of the 28th International Cosmic Ray Conference. July 31-August 7, 2003. Trukuba, Japan. Under the auspices of the I

Physics

1

Scientific paper

The nonlinear kinetic theory of cosmic ray (CR) acceleration in supernova remnants (SNRs) is used to describe the fine spatial structure of the nonthermal X-ray emission of the remnant of SN 1006, obtained in recent Chandra observations. The key property is the large interior magnetic field Bd ≈ 100 µG which had been postulated earlier by the present authors in order to fit the spatially integrated radio and γ -ray synchrotron spectra and the overall morphological structure. Such a large effective field strength can only be produced by the efficiently accelerated nuclear CR component. It is concluded that the appropriate interpretation of the Chandra data is that they verify this large field, and that SN 1006 indeed accelerates nucleonic CRs with the high efficiency required for SNRs to be considered as the main Galactic CR sources.

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