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http://dx.doi.org/10.5303/JKAS.2004.37.2.061

HI 21 CM EMISSION LINE STUDY OF SOUTHERN GALACTIC SUPERNOVA REMNANTS  

KOO BON-CHUL (Astronomy Program, SEES, Seoul National University)
KANG JI-HYUN (Astronomy Program, SEES, Seoul National University)
MCCLURE-GRIFFITHS N. M. (ATNF-CSIRO)
Publication Information
Journal of The Korean Astronomical Society / v.37, no.2, 2004 , pp. 61-77 More about this Journal
Abstract
We have searched for HI 21 cm line emission from shocked atomic gas associated with southern supernova remnants (SNRs) using data from the Southern Galactic Plane Survey. Among the 97 sources studied, we have detected 10 SNRs with high-velocity HI emission confined to the SNR. The large velocity and the spatial confinement suggest that the emission is likely from the gas accelerated by the SN blast wave. We also detected 22 SNRs which show HI emission significantly brighter than the surrounding regions over a wide ($>10 km\;s^{-1}$) velocity interval. The association with these SNRs is less certain. We present the parameters and maps of the excess emission in these SNRs. We discuss in some detail the ten individual SNRs with associated high-velocity HI emission.
Keywords
supernova remnants; radio lines; ISM;
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