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T.G. Pannuti (MIT), M.D. Filipovic (University of Western Sydney/MPE), N. Duric (UNM), W. Pietsch, A. Read (MPE)
We present the results of our search for candidate X-ray and radio SNRs in the nearby Sculptor Group Galaxy NGC 300. We have made radio observations of this galaxy using the Very Large Array at 6cm and 20cm, as well as with the Australia Telescope Compact Array at 13cm and 20cm, and supplemented this data with archived ROSAT PSPC observations. We find that the majority of the optically-identified SNRs in this galaxy are not detected at the 3-sigma level in either the X-ray or the radio, possibly indicating a bias effect in optical surveys that favors the detection of SNRs outside of HII regions. We have also prepared samples of candidate radio and X-ray SNRs in this galaxy.
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