Faculty of Science (FNWI) - Anton Pannekoek Institute for Astronomy (API)
Abstract
We report the discovery of a new variable hard X-ray source, IGR J00370+6122, in a 1.2 Ms INTEGRAL observation of the Cassiopeia region in Dec 2003. The source was found twice while analyzing the data in stretches of ~200 ks. It has a maximum significance of 11.2 sigma in an INTEGRAL IBIS/ISGRI map for the 20-60 keV energy band between MJD 53000.29 and 53002.86.