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

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

Dec 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999a%26a...352..605k&link_type=abstract

Astronomy and Astrophysics, v.352, p.605-608 (1999)

Astronomy and Astrophysics

Astrophysics

6

Stars: Early-Type, Galaxy: Open Clusters And Associations: Individual: Mon Ob2, Cma Ob1, Col 121

Scientific paper

Strömgren and Hβ 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 uvbybeta data for the bright early-type stars in these fields. We present new uvby photometry for 343 stars and Hβ 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 uvbybeta photometry. Based on data from the Strömgren Automatic Telescope of the Copenhagen Astronomical Observatory, La Silla. Tables 3 and 4 are only available in electronic form at the CDS via anonymous ftp to 130.79.128.5 or via http://cdsweb.u-strasbg.fr/Abstract.html

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