2006/02/22 by F. Elias, J. Cabrera-Cano, J. Cabrera-Caño +1 · 1 citation
Physics and Astronomy · Social Sciences · #Astronomy and Astrophysical Research #Distribution (mathematics) #Educational Leadership and Practices #Luminosity #Luminosity function #Sample (material) #Spatial distribution #Spectral line #Stars #Stellar classification #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.1086/503110
published as Astron.J.131:2700-2709,2006 · 28 pages including 9 Postscript figures, one of them in color. Accepted for publication in The Astronomical Journal, 30 January 2006
arxiv created 2006/02/22 · openalex publication_date 2006/04/26 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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.