Absolute magnitudes of OB and Be stars based on Hipparcos parallaxes

被引：48

作者：

Wegner, W ^{[1
]}

机构：

[1] Pedag Univ, Dept Math Techn & Sci, PL-85064 Bydgoszcz, Poland

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2000年 / 319卷 / 03期

关键词：

stars; emission-line; Be; stars : fundamental parameters;

D O I：

10.1046/j.1365-8711.2000.03884.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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 M-v 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.

引用

页码：771 / 776

页数：6