Evidence for a QPO structure in the TeV and X-ray light curve during the 1997 high state Gamma emission of Mkn 501

D. Kranich, O. C. De Jager, M. Kestel +2

The BL Lac Object Mkn 501 was in a state of high activity in the TeV range in 1997. During this time Mkn 501 was observed by all Cherenkov-Telescopes of the HEGRA-Collaboration. Pa…