X-ray properties of G308.3-1.4 and its central compact object
  We present a short Chandra observation that confirms a previous unidentified extended X-ray source, G308.3-1.4, as a new supernova remnant (SNR) in the Milky Way. Apart from identifying its SNR nature, a bright X-ray point source has also been discovered at the geometrical center. Its X-ray spectral properties are similar to those of a particular class of neutron star known as central compact objects (CCOs). On the other hand, the optical properties of this counterpart suggests it to be a late-type star. Together with the interesting ~ 1.4 hours X-ray periodicity found by Chandra, this system can possibly provide the first direct evidence of a compact binary survived in a supernova explosion. 
K. A. Seo (1), C. Y. Hui (1), R. H. H. Huang (2), L. Trepl (3), T.-N.   Lu (2), A. K. H. Kong (2), F. M. Walter (4) ((1) Chu...
astro-ph.HE