Interstellar extinction in the Pleiades

Details Interstellar extinction in the Pleiades Interstellar extinction in the Pleiades

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987qjras..28..289g&link_type=abstract

Royal Astronomical Society, Quarterly Journal (ISSN 0035-8738), vol. 28, Sept. 1987, p. 289-293.

Astronomy and Astrophysics

Astronomy

4

Interstellar Extinction, Star Clusters, Stellar Evolution, Stellar Luminosity, Ultraviolet Spectra

Scientific paper

The different values of the ratio of total to selective absorption R = A(V)/E(B-V) given in the literature for the Pleiades are reviewed, and some new estimates of this ratio are obtained. The results indicate a value R = 3.2, which is close to the normal value for the interstellar medium. However, the interstellar bands and the feature at 2200 A are abnormally weak in the spectrum of the reddened star HD 23512. The reddening of HD 23512 and fainter stars nearby is due mainly to a small molecular cloud which is moving into the cluster.

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