Astronomy and Astrophysics – Astronomy
Scientific paper
May 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982a%26a...109..145g&link_type=abstract
Astronomy and Astrophysics, vol. 109, no. 1, May 1982, p. 145-154.
Astronomy and Astrophysics
Astronomy
30
Astronomical Maps, Galactic Radiation, Hydrogen Clouds, Radio Sources (Astronomy), Radio Spectra, Supernova Remnants, Continuous Spectra, Electron Emission, Hydrogen Ions, Nebulae
Scientific paper
Radio continuum maps have been made of a large region in the constellation of Monoceros at 2700 MHz. Studies of the extended Galactic radio features G 206.9 + 2.3, the Monoceros Nebulosity, and the Rosette Nebula are presented. The radio properties of the sources are studied and the spectra of PKS 0646 + 06 and the Monoceros Nebulosity found to be in excellent agreement with those expected for supernova remnants. The present observations of the Rosette Nebula are combined with available low-frequency measurements to deduce an electron temperature of 4100 K for the Nebula. An average emissivity of 3.3 K/pc at 38 MHz is derived for the foreground Galactic continuum radiation between the sun and the Rosette Nebula.
Graham David A.
Haslam G. T. C.
Salter Christopher J.
Wilson Warwick E.
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