2005/08/29 by D. Pourbaix, G. R. Knapp, P. Szkody +19 · 1 citation
Mathematics · Physics and Astronomy · #Astronomy #Astronomy and Astrophysical Research #Astrophysics #Astrophysics and Star Formation Studies #Binary number #Binary star #Galactic halo #Galaxy #Halo #Mathematics #Physics #Radial velocity #Sky #Stars #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.1051/0004-6361:20053098
7 pages, 17 figures. Accepted for publication in Astronomy and Astrophysics. Table 4 is available at http://sb9.astro.ulb.ac.be/~pourbaix/Papers/data/SDSS/table4.dat
arxiv created 2005/08/29 · openalex publication_date 2005/11/25 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We have examined the radial velocity data for stars spectroscopically observed by the Sloan Digital Sky Survey (SDSS) more than once to investigate the incidence of spectroscopic binaries, and to evaluate the accuracy of the SDSS stellar radial velocities. We find agreement between the fraction of stars with significant velocity variations and the expected fraction of binary stars in the halo and thick disk populations. The observations produce a list of 675 possible new spectroscopic binary stars and orbits for eight of them.