Observations of the giant H II region complex W51 at decameter wavelengths

Details Observations of the giant H II region complex W51 at decameter wavelengths Observations of the giant H II region complex W51 at decameter wavelengths

May 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...160..129d&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 160, no. 1, May 1986, p. 129-131.

Astronomy and Astrophysics

Astronomy

5

H Ii Regions, Radio Sources (Astronomy), Supernova Remnants, Decametric Waves, Galactic Radiation, Nonthermal Radiation, Radio Spectroscopy

Scientific paper

Radio continuum absorption observations at 34.5 MHz with a spatial resolution of 34 x 48 arcmin have been obtained for the giant H II region complex W 51 with the decameter-wave radio telescope at Gauribidanur, India (13 deg 36 min N and long 77 deg 27 min E). A mean electron temperature of 9500 + or - 600 K and a background temperature of 28,000 + or - 2600 K have been derived. The proportion of nonthermal emission originating on the near side of W51 corresponds to a mean emissivity of 2 K/pc. The present observations also indicate that the ring towards the east of the nebula (W 51 C) is nonthermal.

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