Interstellar Extinction in the Direction of The Barnard 1 Dark Cloud in Perseus

Spectral and luminosity classes, absolute magnitudes, color excesses, interstellar extinctions and distances are determined for 98 stars down to 18 mag in the Barnard 1 dark cloud belonging to the Per OB2 association. The classification of stars is based on their photoelectric photometry in the Viln...

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Bibliographic Details
Published inOpen astronomy Vol. 12; no. 3; pp. 301 - 321
Main Authors Černis K., Straižys V.
Format Journal Article
LanguageEnglish
Published De Gruyter 01.01.2003
Subjects
barnard 1
classification ism
dust clouds ism
extinction
fundamental parameters
individual objects
photometric
techniques
vilnius photometric system-stars
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Summary:Spectral and luminosity classes, absolute magnitudes, color excesses, interstellar extinctions and distances are determined for 98 stars down to 18 mag in the Barnard 1 dark cloud belonging to the Per OB2 association. The classification of stars is based on their photoelectric photometry in the Vilnius seven-color photometric system. The extinction vs. distance diagram exhibits the presence of two dust layers at 150 and 230 pc distances. The distance of the first cloud, which gives an extinction Ay of 0.3 mag, coincides with the distance of the Taurus dark cloud complex. The second cloud with much larger extinction is about at the same distance as the clouds in the direction of the nearby objects: reflection nebula NGC 1333 and open cluster IG 348.
ISSN:2543-6376
DOI:10.1515/astro-2017-0054