A catalogue of Galactic supernova remnants from the Canadian Galactic plane survey I. Flux densities, spectra, and polarization characteristics

We present a new catalogue containing all known Galactic supernova remnants observed in phase I and II of the Canadian Galactic Plane Survey ( 65\degr \leq \ell \leq 175\degr,-5\degr \leq b \leq +7\degr). Stokes I images at 1420 MHz of 34 SNRs and at 408 MHz of 36 SNRs are displayed. From these 1\ar...

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Bibliographic Details
Published in:Astronomy and astrophysics (Berlin) 2006-10, Vol.457 (3), p.1081-1093
Main Authors: KOTHES, R, FEDOTOV, K, FOSTER, T. J, UYANIKER, B
Format: Article
Language:English
Subjects:
Astronomy
Earth, ocean, space
Exact sciences and technology
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Summary:We present a new catalogue containing all known Galactic supernova remnants observed in phase I and II of the Canadian Galactic Plane Survey ( 65\degr \leq \ell \leq 175\degr,-5\degr \leq b \leq +7\degr). Stokes I images at 1420 MHz of 34 SNRs and at 408 MHz of 36 SNRs are displayed. From these 1\arcmin and 3\arcmin-resolution data (respectively) we determine accurate centre positions and angular dimensions. The flux densities at 1420 and 408 MHz are integrated and combined with values from the literature to define more accurate radio spectra. The CGPS polarization data at 1420 MHz were examined and significant linear polarization from 18 SNRs is found, with a modest signal from 6 others.
ISSN:0004-6361
1432-0746
DOI:10.1051/0004-6361:20065062