Search for >= 400 GeV gamma-rays from the SNR Cas A
Goret, P. · Gouiffes, C. · Nuss, E. · Ellison, D. C.
Original · EN
The recent detection of a hard X-ray component in the supernova remnant Cassiopeia A is interpreted as synchrotron emission from electrons accelerated to energies up to 40 TeV (Allen et al., 1997). It is therefore tempting to consider TeV gamma-ray emission from this object through: i) bremsstrahlung and inverse Compton radiation from electrons and/or ii) pi0 production from an associated high energy cosmic ray component hitting surrounding material. Cas A was observed by the CAT imaging Cherenkov telescope during the observing season Aug-Nov 1998. An upper limit to the integral flux above 400 GeV of 0.74x10-11 gamma.cm-2.s-1 is derived. This result is used to constrain shock-acceleration models for production of VHE gamma-rays in SNRs.
English translation
This paper has no Arabic translation yet. Be the first: it takes a few seconds, and the result is stored for every future reader.