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Paper: Exploring the X-ray Emission Nature of Supernova Remnant G67.7+1.8 and the Associated Compact Objects
Volume: 404, The Eighth Pacific Rim Conference on Stellar Astrophysics: A Tribute to Kam Ching Leung
Page: 164
Authors: Hui, C.Y.; Beckere, W.
Abstract: A recent Chandra observation has shown that the X-ray morphology of the supernova remnant G67.7+1.8 is well-correlated with the the double-arc structure in radio. The X-ray spectra of the northern and southern rims of G67.7+1.8 exhibit emission line features of highly ionized metals which suggests most of the observed X-rays originated from a thermal plasma. Also, two Gaussian emission line features have been detected in G67.7+1.8. The ~ 7 keV line feature appears in both southern and northern rims which can be resulted from unresolved Fe-K lines. The ~ keV line is only found in the northern rim. Within 1σ errors, the line energy is consistent with the K emission lines from 44Ca and/or 44Sc. A number of faint point sources have been detected near to remnant center. They are promising candidates of a rare population of young neutron stars.
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