@article{1ce549bd4f5346d3997c2dd963d5e4e8,
title = "A second stellar color locus: A bridge from white dwarfs to M stars",
abstract = "We report the discovery of a locus of binary stars in the Sloan Digital Sky Survey (SDSS) g-r versus u-g color-color diagram that connects the colors of white dwarfs and M dwarfs. While its contrast with respect to the main stellar locus is only ∼1 : 2300, this previously unrecognized feature includes 863 stars from the SDSS Data Release 1 (DR1). The position and shape of the feature are in good agreement with predictions of a simple binary star model that consists of a white dwarf and an M dwarf, with the components' luminosity ratio controlling the position along this binary system locus. SDSS DR1 spectra for 47 of these objects strongly support this model. The absolute magnitude-color distribution inferred for the white dwarf component is in good agreement with the models of Bergeron et al.",
keywords = "Binaries: general, Galaxy: stellar content, Stars: statistics, White dwarfs",
author = "Vernesa Smol{\v c}i{\'c} and {\v Z}eljko Ivezi{\'c} and Knapp, \{Gillian R.\} and Lupton, \{Robert H.\} and Kre{\v s}imir Pavlovski and Sa{\v s}a Iliji{\'c} and David Schlegel and Smith, \{J. Allyn\} and McGehee, \{Peregrine M.\} and Silvestri, \{Nicole M.\} and Hawley, \{Suzanne L.\} and Constance Rockosi and Gunn, \{James E.\} and Strauss, \{Michael A.\} and Xiaohui Fan and Daniel Eisenstein and Hugh Harris",
note = "Funding Information: Funding for the creation and distribution of the SDSS Archive11 has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Aeronautics and Space Administration, the National Science Foundation, the US Department of Energy, the Japanese Monbukagakusho, and the Max Planck Society. Funding Information: Funding for the creation and distribution of the SDSS Archive11 has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Aeronautics and Space Administration, the National Science Foundation, the US Department of Energy, the Japanese Monbukagakusho, and the Max Planck Society. The SDSS is managed by the Astrophysical Research Consortium (ARC) for the Participating Institutions. The Participating Institutions are the University of Chicago, Fermilab, the Institute for Advanced Study, the Japan Participation Group, The Johns Hopkins University, Los Alamos National Laboratory, the Max-Planck-Institute for Astronomy (MPIA), the Max-Planck-Institute for Astrophysics (MPA), New Mexico State University, the University of Pittsburgh, Princeton University, the United States Naval Observatory, and the University of Washington.",
year = "2004",
month = nov,
day = "10",
doi = "10.1086/426475",
language = "English (US)",
volume = "615",
pages = "L141--L144",
journal = "Astrophysical Journal",
issn = "0004-637X",
publisher = "American Astronomical Society",
number = "2 II",
}