VLA observations of candidate supernova remnants from the Clark Lake 30.9 MHz Galactic plane survey

Details VLA observations of candidate supernova remnants from the Clark Lake 30.9 MHz Galactic plane survey VLA observations of candidate supernova remnants from the Clark Lake 30.9 MHz Galactic plane survey

Jan 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aj....105..314g&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 105, no. 1, p. 314-319.

Astronomy and Astrophysics

Astronomy

2

Extragalactic Radio Sources, H Ii Regions, Sky Surveys (Astronomy), Supernova Remnants, Very Large Array (Vla), Galactic Structure, Linear Polarization, Massive Stars, Stellar Evolution

Scientific paper

Results are reported from 1464 MHz continuum VLA observations of eight fields containing unidentified small-diameter objects associated with candidate supernova remnants from the Clark Lake 30.9 MHz galactic plane survey. The observations were made in the C configuration, giving a resolution of about 12-20 arcsec, and a sensitivity of typically less than 0.5 mJy/beam. Polarization measurements were made as well. One of the 30.9 MHz candidates, G41.4 + 1.2, appears to be confirmed as a supernova remnant by these observations. Of the remaining seven fields observed, three were found to contain small-diameter objects which met some of the criteria for nonthermal origin. Two of the fields were found to contain groups of unresolved objects consistent with expectations for extragalactic background sources. Two fields contained bright H II regions.

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