DISCOVERY OF GAMMA-RAY EMISSION FROM THE SUPERNOVA REMNANT Kes 17 WITH <i>FERMI</i> LARGE AREA TELESCOPE

Abstract

We report the discovery of GeV emission at the position of supernova remnant\nKes 17 by using the data from the Large Area Telescope on board the Fermi\nGamma-ray Space Telescope. Kes 17 can be clearly detected with a significance\nof ~12 sigma in the 1 - 20 GeV range. Moreover, a number of gamma-ray sources\nwere detected in its vicinity. The gamma-ray spectrum of Kes 17 can be well\ndescribed by a simple power-law with a photon index of ~ 2.4. Together with the\nmulti-wavelength evidence for its interactions with the nearby molecular cloud,\nthe gamma-ray detection suggests that Kes 17 is a candidate acceleration site\nfor cosmic-rays.\n