The VELA star cloud. I - NGC 2547, TR 10, the Gamma Velorum system, and bright stars

Details The VELA star cloud. I - NGC 2547, TR 10, the Gamma Velorum system, and bright stars The VELA star cloud. I - NGC 2547, TR 10, the Gamma Velorum system, and bright stars

Jun 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...238..627e&link_type=abstract

Astrophysical Journal, Part 1, vol. 238, June 1, 1980, p. 627-642.

Mathematics

Probability

50

Galactic Clusters, Star Clusters, Stellar Evolution, Stellar Spectrophotometry, Brightness, Stellar Luminosity, Stellar Motions

Scientific paper

The first results of an intermediate-band, large-scale photometric survey of the Vela star cloud are discussed. Attention is given to the luminosity and reddening, as well as the apparent or proper motions of all the CPD stars near NGC 2547, the brightest stars in Trumpler 10, a random selection of stars in the region of Gamma Velorum, and the HR stars. The similarity of the Alpha Persei cluster with the clusters in the Vela sheet is shown, and it is found that the Vela sheet, at least over the region surveyed, is nearly perpendicular to the line of sight. The probability is demonstrated that a thin sheet of coeval (2.5 x 10 to the 7th yr) stars, some 425 pc distant and with a similar metal abundance, lies in front of a dense dark cloud.

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