Detailed model for Tycho's supernova remnant and the HEGRA upper limit for TeV gamma-ray emission

Details Detailed model for Tycho's supernova remnant and the HEGRA upper limit for TeV gamma-ray emission Detailed model for Tycho's supernova remnant and the HEGRA upper limit for TeV gamma-ray emission

Aug 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001icrc....6.2469b&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

A nonlinear kinetic model of cosmic ray (CR) acceleration in supernova remnants (SNRs) is used to describe the properties of Tycho's SNR. Observations of the expansion law and of the radio and X-ray emission spectra, assumed to be synchrotron spectra, are used to constrain the astronomical and acceleration parameters of the system, in addition to independent estimates of the distance and thermal X-ray observations. The π0 -decay γ-ray flux turns out to be somewhat greater than the inverse Compton (IC) flux at 1 TeV, dominating it strongly at 10 TeV. The predicted TeV γ-ray flux is consistent with the very low upper limit recently obtained by HEGRA. A future detection at ˜ 10 TeV would clearly indicate a hadronic emission.

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