Radio observations at 1720 MHz of the area L equals 38.5 to 43.5 deg and B equals -5 to 5 deg - The region surrounding W 50

Details Radio observations at 1720 MHz of the area L equals 38.5 to 43.5 deg and B equals -5 to 5 deg - The region surrounding W 50 Radio observations at 1720 MHz of the area L equals 38.5 to 43.5 deg and B equals -5 to 5 deg - The region surrounding W 50

Apr 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a....97..296d&link_type=abstract

Astronomy and Astrophysics, vol. 97, no. 2, Apr. 1981, p. 296-301.

Astronomy and Astrophysics

Astronomy

15

Galactic Radio Waves, Radio Sources (Astronomy), Supernova Remnants, Astronomical Catalogs, Astronomical Maps, Linear Polarization, Nonthermal Radiation

Scientific paper

Total intensity and linear polarization measurements at 1720 MHz are presented of the area l equals 38.5 to 43.5 deg and b equals -5 to 5 deg, which contains the W 50 supernova remnant. Several new sources were detected and positions and flux densities are given for the discrete sources in the field. It is suggested that the object CTB 72 is part of a large nonthermal emission arc underlying W 50 rather than being an individual supernova remnant, and parameters are derived for the large emission arc on the assumption that it is a supernova remnant. The value of the spectral index of W 50 is confirmed to be 0.46 + or - 0.05, while the adjoining S 74 region is shown to have a considerably flatter, probably thermal, spectrum.

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