0520032

We propose to observe the peculiar accreting X-ray pulsar X-Per three times for 200 ksec each resulting in a total exposure time of 600 ksec. This will be the first Integral observation of the Perseus region -- there are currently neither public nor private data available within 8 degrees of X-Per. This 600 ksec long observation will therefore not only allow us to perform phase-resolved spectroscopy to study the cyclotron line at 30 keV to search for a harmonic line and to determine the high energy continuum of the source to study the abnormal spectral shape from 2 keV up to 100 keV but also to get a first deep view of the Perseus region with the possibility to discover new sources. Performing three separated observations will allow us to sample the binary orbit at no extra cost. This proposal was accepted in AO4 in category B but was not performed to date. [truncated! Please see actual data for full text]