Extinction of OB stars (Wegner, 2003)

Details Extinction of OB stars (Wegner, 2003) Extinction of OB stars (Wegner, 2003)

Sep 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003ycatp001032401w&link_type=abstract

VizieR On-line Data Catalog: J/other/AN/324.219. Originally published in: 2003AN....324..219W

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Stars: Early-Type, Photometry, Extinction

Scientific paper

The paper presents an extensive list of the total to selective extinction ratios R calculated from the infrared magnitudes of 597 O and B stars using the extrapolation method. The IR magnitudes of these stars were taken from the literature. The IR colour excesses are determined with the aid of "artificial standards", Wegner (1994MNRAS.270..229W). The individual and mean values of total to selective extinction ratios R differ in most cases from the average value R=3.10+/-0.05, Wegner (1993AcA....43..209W) in different OB associations. The relation between total to selective extinction ratios R determined in this paper and those calculated using the "method of variable extinction" and the Cardelli et al. (1989ApJ...345..245C) formulae is discussed. The R values presented in this paper can be used to determine individual absolute magnitudes of reddened OB stars with known trigonometric parallaxes.
(2 data files).

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