Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983afz....19..119d&link_type=abstract
(Astrofizika, vol. 19, Jan.-Mar. 1983, p. 119-126) Astrophysics (ISSN 0571-7132), vol. 19, no. 1, July 1983, p. 70-75. Translati
Astronomy and Astrophysics
Astrophysics
1
Orion Nebula, Star Clusters, Stellar Luminosity, Stellar Spectrophotometry, H Lines, Line Spectra, Stellar Spectra
Scientific paper
Stars of the luminosity type Vb are investigated using spectral observations obtained for 10 stars of the Orion nebula cluster. The equivalent width, the half-width, and the width of the wings at the level of the continuum are obtained for the absorption line H-gamma. It is found that, for stars with broad H I lines, both the width of the wings at the level of the continuum and the ratio of this value to the half-width for the H-gamma absorption line exceed the values observed for ordinary main sequence stars by 1.5-2.5 times. The visual magnitude, the law of interstellar absorption (R), and the distance modulus are determined for each of these stars. It is determined that a deviation from the normal law with R greater than 3.3 is exhibited by the majority of these stars.
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