Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981azh....58.1051t&link_type=abstract
Astronomicheskii Zhurnal, vol. 58, Sept.-Oct. 1981, p. 1051-1056. In Russian.
Astronomy and Astrophysics
Astronomy
14
Binary Stars, Cygnus Constellation, Red Giant Stars, Stellar Spectrophotometry, Ubv Spectra, Variable Stars, Brightness, Infrared Radiation, Interstellar Gas, Ionized Gases, Stellar Envelopes, Stellar Luminosity, Stellar Radiation, Stellar Temperature
Scientific paper
Photometric observations of CI Cygni in the UBVRJHKLMN system made during 1978-1980 are reported. The data disclose the optical variability of CI Cyg as well as brightness variation in the 0.7-3.5-micron range. Considerable infrared excess was detected at 10 microns. The physical parameters of the individual components of the system, i.e., the hot star, the cold star, and the ionized gas, are examined.
Taranova O. G.
Yudin Boris F.
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