Absolute magnitudes of OB and Be stars based on Hipparcos parallaxes

Details Absolute magnitudes of OB and Be stars based on Hipparcos parallaxes Absolute magnitudes of OB and Be stars based on Hipparcos parallaxes

Dec 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000mnras.319..771w&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 319, Issue 3, pp. 771-776.

Astronomy and Astrophysics

Astronomy

27

Stars: Emission-Line, Be, Stars: Fundamental Parameters

Scientific paper

Absolute visual magnitudes of OB stars are determined from Hipparcos parallaxes using a sample of 1207 unreddened and 441 reddened stars of luminosity classes V-IV, III, Ia and Iab-Ib-II. The value of total-to-selective extinction R for reddened stars was calculated from near-infrared photometry. The new MV calibration is compared with existing calibrations. The visual absolute magnitudes of Be stars were obtained from a sample of 90 unreddened and 25 reddened stars. Generally, Be stars are brighter than B stars of the corresponding spectral types, in agreement with earlier results.

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