The point radio source in the supernova remnant G 78.2 + 2.1

Details The point radio source in the supernova remnant G 78.2 + 2.1 The point radio source in the supernova remnant G 78.2 + 2.1

Nov 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a...103..370h&link_type=abstract

Astronomy and Astrophysics, vol. 103, no. 2, Nov. 1981, p. 370-373. NSF-supported research.

Astronomy and Astrophysics

Astronomy

1

Extragalactic Radio Sources, Point Sources, Radio Astronomy, Supernova Remnants, Antenna Arrays, Radiant Flux Density, Radio Spectra, Very Large Array (Vla)

Scientific paper

Observations of a point source, 2020 + 401, in the eastern rim of the supernova remnant G 78.2 +2.1 have been made at 20 cm, 6 cm, and 2 cm using the Very Large Array. This source was previously thought to be variable, but no variability was detected over a two-month time interval. The radio properties of the source give no reason to associate it with the supernova remnant. It is a point source (less than 0.05 arcsec) and has a spectrum typical of many quasars, and is therefore probably a background extragalactic source. Two other small-diameter sources within the remnant are possibly related to it. However, the number of such sources found is consistent with extragalactic source counts.

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