The X-ray analysis of DA 495

A. Karpova, D. Zyuzin, A. Danilenko, Yu. Shibanov

Ioffe Institute, Polytekhnicheskaya 26, 194021, St. Petersburg, Russia

We present results of the spectral and timing analysis of the X-ray emission from the pulsar wind nebula DA 495 and its central object, J1952.2+2925, using archival Chandra and XMM-Newton data. J1952, which is presumably a pulsar, has a pure thermal spectrum equally well described by the blackbody and magnetized neutron star atmosphere models. No pulsations were found in timing analysis so we derived an upper limit for the pulsed fraction which is 40 % in 0.5-1.4 keV band (99% confidence). In addition, we estimated the distance to DA 495 utilizing the interstellar absorption-distance relation.

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