Stromgren and Hβ photometry of O and B type stars in star-forming regions II.: Monoceros OB2, Canis Major OB1 and Collinder 121

被引:0
作者
Kaltcheva, NT
Olsen, EH
Clausen, JV
机构
[1] Univ Sofia, Dept Astron, Sofia 1164, Bulgaria
[2] Niels Bohr Inst Astron Phys & Geophys, Copenhagen 2100 0, Denmark
关键词
stars : early-type; galaxy : open clusters and associations : individual : Mon OB2; CMa OB1; Col; 121;
D O I
暂无
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Stromgren and H beta photometry of O and B type stars, generally brighter than 10 mag is presented for the fields of the galactic OB associations Monoceros OB2, Canis Major OB1 and Collinder 121. The observations are based on the PPM catalogue identifications and are designed to improve the completeness of the existing uvby beta data for the bright early-type stars in these fields. We present new uvby photometry for 343 stars and H beta photometry for 213 of them. These observations are part of our effort to study the structure of selected star-forming regions in the Milky Way, utilizing uvby beta photometry.
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页码:605 / 608
页数:4
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