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Ob stars in the solar neighborhood. I. analysis of their spatial distribution

 

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Opened Access Ob stars in the solar neighborhood. I. analysis of their spatial distribution
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Author: Elias, F.
Cabrera Caño, Jesús María
Alfaro, Emilio J.
Department: Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear
Date: 2006-05
Published in: Astronomical Journal, 131 (5), 2700-2709.
Document type: Article
Abstract: We present a newly developed, three-dimensional spatial classification method, designed to analyze the spatial distribution of early-type stars within the 1 kpc sphere around the Sun. We propose a distribution model formed by two intersecting disks, the Gould Belt (GB) and the local Galactic disk (LGD), defined by their fundamental geometric parameters. Then, using a sample of about 550 stars of spectral types earlier than B6 and luminosity classes between III and V, with precise photometric distances of less than 1 kpc, we estimate for some spectral groups the parameters of our model, as well as single-membership probabilities of GB and LGD stars, thus drawing a picture of the spatial distribution of young stars in the vicinity of the Sun.
Cite: Elias, F., Cabrera Caño, J.M. y Alfaro, E.J. (2006). Ob stars in the solar neighborhood. I. analysis of their spatial distribution. Astronomical Journal, 131 (5), 2700-2709.
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URI: http://hdl.handle.net/11441/62324

DOI: 10.1086/503110

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