Physics
Scientific paper
Mar 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984afz....20..245g&link_type=abstract
(Astrofizika, vol. 20, Mar.-Apr. 1984, p. 245-261) Astrophysics (ISSN 0571-7132), vol. 20, no. 2, Sept. 1984, p. 129-138. Transl
Physics
7
B Stars, Interstellar Extinction, O Stars, Star Distribution, Stellar Spectrophotometry, Matter (Physics), Spatial Distribution, Stellar Color, Tables (Data)
Scientific paper
The results of spectrophotometric observations of 277 OB stars in a 7 x 7-deg region around P Cyg, obtained in 8-sec, 45-sec, and 8-min exposures on ORWO ZU-21 plates with a 4-deg 272-A/mm-dispersion objective prism on the 40-in. Schmidt telescope at Biurakan Astrophysical Observatory on October 14-19, 1979, are presented in tables and graphs and characterized. Data reported include 400-480-nm absolute spectrophotometric gradients, color excesses, and distances. It is found that concentrations of OB stars with associated absorbing matter exist toward the associations Cyg OB9 (two concentrations at 800 and 1800 pc), Cyg OB3 (three concentrations at 1.4, 2.5, and 3.7 kpc), OB1 (at 1.6 kpc), Cyg OB8 (at 1.5 kpc), and over the entire observed region at a distance of about 500 pc.
Garibdzhanian A. T.
Gasparian K. G.
Oganesian Kh. R.
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