Supernova remnant candidates from the Parkes 2.4-GHz survey

Details Supernova remnant candidates from the Parkes 2.4-GHz survey Supernova remnant candidates from the Parkes 2.4-GHz survey

Jun 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997mnras.287..722d&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 287, Issue 4, pp. 722-738.

Astronomy and Astrophysics

Astronomy

38

Magnetic Fields, Polarization, Supernova Remnants, Galaxy: Structure

Scientific paper

25 supernova remnant (SNR) candidates are presented from the recent Parkes 2.4-GHz survey of the southern Galactic plane. Their angular diameters range from approximately 16 arcmin to 18 deg. Polarized emission is also detected from some of these candidates. The inclusion of these objects in current SNR catalogues will raise the number of large SNRs (diameters >~20 arcmin) in the longitude range 270 deg<=l<=360 deg to a value comparable to that of the northern Galactic plane (0 deg<=l<=90 deg). An excess of SNR candidates around longitudes of 310 deg-330 deg is noted, suggesting that these objects, which are mainly of large angular diameter (greater than 2 deg), may form part of a nearby `cluster' of remnants. Comparisons with the 4.85-GHz PMN survey are also given. Pulsar associations are considered, although only one possible candidate has been found.

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