Contribution to the cosmic ray flux from Geminga and Tycho's Supernovae

TeV energies gamma-rays, measurable by the imaging Cherenkov technique, are the most interesting for searching for hadronic CRs in SNRs because they provide information about CRs of the highest possible energies 1013–1014 eV. Direct information about high-energy CR population in SNRs can be obtained from gamma-ray observation. High-energy gamma-rays are produced by electronic and hadronic CR components in Inverse Compton (IC) scattering and in hadronic collisions leading to pion production and subsequent decay. SNRs of type Ib and II are more numerous in our Galaxy. According to the theoretical prediction about 20 SNRs should be visible in the TeV gamma-ray range whereas only two have been detected up to now by SHALON, namely Tycho's SNR and Geminga.