A COMPACT CENTRAL OBJECT IN THE SUPERNOVA REMNANT KESTEVEN 79

摘要

A Chandra X-ray observation has detected an unresolved source at the center of the supernova remnant Kes 79. The best single-model fit to the source spectrum is a blackbody with an X-ray luminosity of L_X(0.3-8.0 keV) = 7 x 10~(33) ergs s~(-1). There is no evidence for a surrounding pulsar wind nebula. There are no cataloged counterparts at other wavelengths, but the absorption is high. The source properties are similar to the central source in Cas A even though the Kes 79 remnant is considerably older.