Observations at 90 and 142 GHz of nine extended galactic radio sources

Details Observations at 90 and 142 GHz of nine extended galactic radio sources Observations at 90 and 142 GHz of nine extended galactic radio sources

Nov 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...225..167s&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 225, no. 1, Nov. 1989, p. 167-178.

Astronomy and Astrophysics

Astronomy

31

Continuous Radiation, Galactic Radio Waves, H Ii Regions, Interstellar Matter, Radio Sources (Astronomy), Astronomical Maps, Radio Astronomy, Radio Telescopes

Scientific paper

The paper presents 90 and 142 GHz continuum maps with resolutions of about 28 and 20 arcsecs, respectively, of nine extended Galactic radio sources. High-frequency excesses, believed to be due predominantly to thermal emission from dust, were found in Orion A, W 3 Main, W 49 A, and W 51 A. For the SNR, G 21.5-0.9, the existence of a spectral break around 40 GHz is confirmed.

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