Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987azh....64..939l&link_type=abstract
Astronomicheskii Zhurnal (ISSN 0004-6299), vol. 64, Sept.-Oct. 1987, p. 939-955. In Russian.
Astronomy and Astrophysics
Astronomy
B Stars, Cosmic Dust, Cosmic Gases, Nebulae, O Stars, Star Clusters, Astronomical Maps, Astronomical Photography, H Alpha Line, Infrared Spectra, Ionized Gases, Molecular Clouds
Scientific paper
The results of investigations of the gas-and-dust complex connected with the young association Cep OB4 and the cluster Be 59 are presented. Monochromatic photographs of the bright emission nebulae S 171 (W1) and NGC 7822 are obtained. The expansion velocity of a faint extended shell around W1 and Cep OB4 is confirmed to be equal to 30 - 40 km s-1. IR observations are presented. A second "inner" shell is revealed. The numerous molecular and dust clouds, emission nebulae and two faint extended shells in this region lead to the conclusion that they form a single complex associated with Cep OB4 and the young cluster Be 59. The shell-type morphology of the complex seems to be created by the stellar wind of Cep OB4 and Be 59. The expansion velocity could be explained by a supernova explosion about 3×105years ago or by a short-lived (or invisible) source of a strong stellar wind.
Lozinskaya Tatiana A.
Sitnik T. G.
Toropova M. S.
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