<i>XMM-NEWTON</i>OBSERVATION OF PSR B2224+65 AND ITS JET

Abstract

We have investigated the pulsar PSR B2224+65 and its X-ray jet with\nXMM-Newton. Apart from the long X-ray jet which is almost perpendicular to the\ndirection of proper motion, a putative extended feature at the pulsar position,\nwhich oriented in the opposite direction of the proper motion, is also\nsuggested by this deep X-ray imaging. Non-detection of any coherent X-ray\npulsation disfavors the magnetospheric origin of the X-rays observed from the\nposition of PSR B2224+65 and hence suggest that the interpretation of pulsar\nwind nebula is more viable. We have also probed the origin of PSR B2224+65 and\nidentified a runaway star, which possibly originated from the Cygnus OB9\nassociation, as a candidate for the former binary companion of the neutron\nstar's progenitor.\n