The unusual nature of the radio emission of the OB star association in the Scorpius constellation

Details The unusual nature of the radio emission of the OB star association in the Scorpius constellation The unusual nature of the radio emission of the OB star association in the Scorpius constellation

Jun 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987azh....64..476l&link_type=abstract

Astronomicheskii Zhurnal (ISSN 0004-6299), vol. 64, May-June 1987, p. 476-482. In Russian.

Astronomy and Astrophysics

Astronomy

B Stars, Emission Spectra, O Stars, Radio Spectra, Scorpius Constellation, Stellar Spectrophotometry, Astronomical Catalogs, Hydrogen Clouds, Spectral Energy Distribution, Thermal Emission

Scientific paper

The results of observations of the Sco OB 2 association at a wavelength of 7.6 cm are given. A catalog of 82 sources with small angular dimensions is compiled and an excess of objects with nonthermal spectra having nonuniform distributions in the map plane is found. A ring with a deficit of sources is identified which is about 8 deg in diameter. Ten percent of the sources have inversion spectra representing compact H II regions with a lifetime of less than 1000 yrs.

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