Abstract
view Abstract Citations (13) References (38) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Kinematics of Sandage-Fouts Stars in the Three Cardinal Directions Yoss, Kenneth M. ; Bell, David J. ; Detweiler, H. L. Abstract V and (B - V) for 429, 442, and 427 stars are observed in the directions of the anticenter, Cygnus, and the NGP, respectively, and DDO colors for those stars G0 and later. The samples observed are ones for which Sandage and Fouts (1987) have published radial velocities. W, V, and W components of space velocity are derived from DDO distances with available proper motions. A clear correlation was found to exist between the velocity dispersions and Fe/H with the dispersions decreasing as Fe/H increases to about + 0.00, where V then becomes significantly negative. The 'thick disk' component is clearly recognized, with sigma (W) approximately equal to 36 km/sec. In the 'old thin disk' and the 'young thin disk', 43 percent and 42 percent of the stars have negative V values, respectively. Publication: The Astronomical Journal Pub Date: September 1991 DOI: 10.1086/115926 Bibcode: 1991AJ....102..975Y Keywords: Cygnus Constellation; Giant Stars; Radial Velocity; Stellar Composition; Stellar Motions; Interstellar Extinction; Star Formation; Stellar Color; Astronomy; STARS: PROPER-MOTION; GALAXIES: THE GALAXY full text sources ADS | data products SIMBAD (706) GCPD (1)
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