Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985aj.....90.1490v&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 90, Aug. 1985, p. 1490-1493.
Astronomy and Astrophysics
Astronomy
37
Early Stars, Interstellar Extinction, Molecular Clouds, Stellar Spectrophotometry, Taurus Constellation, A Stars, Astronomical Maps, B Stars, Infrared Photometry, Stellar Color, Stellar Evolution, Stellar Spectra
Scientific paper
UBVRI and JHK photometry, as well as spectral classifications are presented for seven reddened early-type field stars that are observed through the Taurus dark cloud complex. The ratio of total-to-selective extinction is derived for each star by the color-difference method. For six stars with absolute magnitudes in violet of more than 1.7 and less than 3.2 mag, a normal ratio R of total-to-selective extinction of about 3.1 is found. The mildly anomalous R value of about 3.5 for the well-studied star HD 29647 was also confirmed. The results provide further evidence that the interstellar extinction law in the Taurus dark cloud complex is basically normal for lines of sight with absolute magnitudes in violet of less than 3 mag.
Rydgren Eric A.
Vrba Fred J.
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