Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....84..237g&link_type=abstract
Astronomy and Astrophysics, vol. 84, no. 1-2, Apr. 1980, p. 237-244.
Astronomy and Astrophysics
Astronomy
64
Continuous Spectra, Microwave Spectra, Radio Sources (Astronomy), Supernova Remnants, Astronomical Maps, Brightness Temperature, Emission Spectra, H Ii Regions, Milky Way Galaxy, Nonthermal Radiation, Radiant Flux Density, Radio Astronomy
Scientific paper
Continuum observations of the Galactic nonthermal radio sources W 50 and G 74.9 + 1.2 reveal evidence of both shell structure and a significant level of emission from within W 50, and that the compact source 1909 + 048 (SS 433) is centrally located within W 50. It is noted that a barely resolved, jet-like ridge which extends from close to 1909 + 048 and continues for about 30' to the outer gradient of the complex, may be an observable manifestation of the jet structure proposed by Fabian and Rees (1979) for 1909 + 048. Consideration is given to the H II region S 74, which falls within the W 50 field, and to a 30' diameter weak emission loop underlying S 74. With regard to G 74.9 + 1.2, no extended emission is found to be associated with it, and a heretofore unknown, extended radio source has been discovered to its southwest.
Geldzahler Barry J.
Pauls Thomas
Salter Christopher J.
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