Nature of the X-ray source in supernova remnant RCW103

I discuss the nature of the compact X-ray source in the center of the super nova remnant RCW 103. Several models, based on the accretion onto a compact object are briefly discussed. I show that it is more likely that the centr al X-ray source is an accreting neutron star than an accreting black hole. I also argue that models of a disrupted binary system consisting of an old accreting neutron star and a new one observed as a 69-ms pulsar are most fa vored.