Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aspc..404..164h&link_type=abstract
The Eighth Pacific Rim Conference on Stellar Astrophysics: A Tribute to Kam-Ching Leung ASP Conference Series, Vol. 404, proceed
Astronomy and Astrophysics
Astrophysics
Scientific paper
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 G67.6+1.8. The ˜7 keV line feature appears in both southern and northern rims which can be resulted from unresolved Fe-K lines. The ˜4 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.
Becker Walter
Hui Chun Yin
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