Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985ap%26ss.108..237b&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 108, no. 2, Jan. 1985, p. 237-302.
Astronomy and Astrophysics
Astrophysics
75
Cygnus Constellation, Evolution (Development), Interstellar Gas, Interstellar Matter, Star Distribution, X Ray Sources, B Stars, Centimeter Waves, Infrared Spectra, Milky Way Galaxy, O Stars, Radio Spectra, Supernova Remnants, Visible Spectrum, Wolf-Rayet Stars
Scientific paper
This paper summarizes and analyzes the results of radio, optical, infrared, and X-ray observations of a large sector of the sky in the constellation Cygnus (α ≈ 19h20m - 22h, δ = 30 - 50°; lII = 65 - 90°, |bII| ≤ 10°). This region is associated with an extended X-ray source referred to as the Cygnus superbubble. About a quarter of the superbubble region is occupied by the extensively investigated multicomponent thermal radio source Cyg X. The region contains eight OB-associations. Between 50 and 75% of the Cygnus superbubble's X-ray emission can be ascribed to discrete sources, the rest being probably due to regions of coronal gas about 100 pc in diameter, created by stellar winds and, possibly, supernova explosions in individual associations. The objects that produce the X-ray and optical radiation of the presumed superbubble are located at distances from 0.5 to 2.5 kpc from the Sun in the Carina-Cygnus spiral arm.
Bochkarev Nikolai G.
Sitnik T. G.
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