X-ray synchrotron emission from 10-100 TeV cosmic-ray electrons in the supernova remnant SN 1006

Details X-ray synchrotron emission from 10-100 TeV cosmic-ray electrons in the supernova remnant SN 1006 X-ray synchrotron emission from 10-100 TeV cosmic-ray electrons in the supernova remnant SN 1006

Aug 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001icrc....6.2440a&link_type=abstract

Proceedings of the 27th International Cosmic Ray Conference. 07-15 August, 2001. Hamburg, Germany. Under the auspices of the Int

Physics

Scientific paper

The search for evidence of the origin of Galactic cosmic rays has been an active area of research for many decades. While little evidence exists about the sites where very-highenergy nuclei are accelerated, the results of recent X-ray and gamma-ray observations indicate that at least some of the cosmic-ray electrons are accelerated in the shocks of supernova remnants (Koyama et al. (1995); Koyama et al. (1997); Allen et al. (1997); Tanimori et al. (1998); Allen et al. (1999); Vink et al. (1999); Slane et al. (1999); Muraishi et al. (2000); Borkowski et al. (2000); Dyer et al. (2001); Allen et al. (2001)). SN 1006 is one remnant for which there is evidence that cosmic-ray electrons have been accelerated to energies as high as about 100 TeV (Koyama et al. (1995); Tanimori et al. (1998); Allen et al. (2001)). In this paper, measurements of the X-ray and radio emission of the remnant are used to determine the parameters of the non-thermal electron spectrum. Although there is no evidence to indicate that cosmicray nuclei are accelerated in SN 1006, relativistic electrons and nuclei are expected to be accelerated in a similar manner (Ellison and Reynolds (1991)). Therefore, we estimate the parameters of the proton and helium spectra of the remnant. The results of this analysis show that the remnant is a significant source of Galactic cosmic rays (at least cosmic-ray electrons) and provide some support for the idea that Galactic cosmic rays are accelerated predominantly in the shocks of supernova remnants.

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