Astrophys. Space Sci. Trans., 7, 179-182, 2011
www.astrophys-space-sci-trans.net/7/179/2011/
doi:10.5194/astra-7-179-2011
© Author(s) 2011. This work is distributed
under the Creative Commons Attribution 3.0 License.
 
19 May 2011
Young supernova remnants and the knee in the cosmic ray spectrum
A. Erlykin1, T. Wibig2, and A. W. Wolfendale3
1Lebedev Physical Institute, Moscow 117924, Russia
2Physics Dept., University of Łódź; Sołtan Inst. Nucl. Studies, Łódź, Poland
3Department of Physics, Durham University, Durham, UK

Abstract. It has recently been suggested that neutron stars inside the shells of young supernova remnants (SNR) are the sources of PeV cosmic rays and that the interaction of the particles with the radiation field in the SNR causes electron pair production, which has relevance to recent observations of "high" positron fluxes. Furthermore, the character of the interaction is such that the well-known knee in the cosmic ray energy spectrum can be explained. Our examination of the mechanism leads us to believe that the required parameters of SN and pulsars are so uncommon that the knee and positron fraction can only be explained if a single, local and recent SN – and associated pulsar – are concerned. In this case the mechanism can be valid.

Citation: Erlykin, A., Wibig, T., and Wolfendale, A. W.: Young supernova remnants and the knee in the cosmic ray spectrum, Astrophys. Space Sci. Trans., 7, 179-182, doi:10.5194/astra-7-179-2011, 2011.
 
Search ASTRA
Special issue
Download
PDF XML
Citation
Share