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...

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Bibliographic Details
Published in:arXiv.org 2012-10
Main Authors: Seo, K A, Hui, C Y, Huang, R H H, Trepl, L, T -N Lu, Kong, A K H, Walter, F M
Format: Article
Language:English
Subjects:
Neutron stars
Neutrons
Optical properties
Periodic variations
Supernova remnants
X ray sources
X ray spectra
Online Access:Get full text
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Summary: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.
ISSN:2331-8422
DOI:10.48550/arxiv.1210.8332