UVBY beta photometry of stars in the field of NGC 2244 and NGC 2264

Details UVBY beta photometry of stars in the field of NGC 2244 and NGC 2264 UVBY beta photometry of stars in the field of NGC 2244 and NGC 2264

Feb 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989pasp..101..195p&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 101, Feb. 1989, p. 195-210. Research supported by Brigh

Astronomy and Astrophysics

Astronomy

32

Astronomical Photometry, B Stars, Galactic Clusters, Open Clusters, Ubv Spectra, Early Stars, Hertzsprung-Russell Diagram, Main Sequence Stars, Stellar Mass

Scientific paper

Results are presented from uvby beta photometric observations of 34 stars in the fields of NGC 2244 and NGC 2264. Photometric and astrometric indicators suggest that about a third of the sample are nonmembers of the clusters. Cluster color excesses are determined for the two clusters. For the stars examined, log g and effective temperature are estimated. Also, stellar radii, masses, and positions in the H-R diagram are calculated. The cluster ages and the main-sequence lifetime for massive stars show that star formation in the region has not been restricted to a single epoch.

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