Distances of Dwarf Carbon Stars
arXiv:1804.09824 · doi:10.3847/1538-3881/aac100
Abstract
Parallaxes are presented for a sample of 20 nearby dwarf carbon stars. The inferred luminosities cover almost two orders of magnitude. Their absolute magnitudes and tangential velocities confirm prior expectations that some originate in the Galactic disk, although more than half of this sample are halo stars. Three stars are found to be astrometric binaries, and orbital elements are determined; their semimajor axes are 1 -- 3 AU, consistent with the size of an AGB mass-transfer donor star.
arXiv comment9 pages, 5 figures, accepted by Astronomical Journal
References in corpus (14)
- The Sloan Digital Sky Survey: Technical Summary
- The 2.5 m Telescope of the Sloan Digital Sky Survey
- The Sloan Digital Sky Survey Photometric Camera
- SDSS Standard Star Catalog for Stripe 82: the Dawn of Industrial 1% Optical Photometry
- The AllWISE Motion Survey, Part 2
- Innocent Bystanders: Carbon Stars from the Sloan Digital Sky Survey
- Faint High-Latitude Carbon Stars Discovered by the Sloan Digital Sky Survey: An Initial Catalog
- Faint High Latitude Carbon Stars Discovered by the Sloan Digital Sky Survey: Methods and Initial Results
- The Binary Nature of the Subgiant CH Stars
- CCD Parallaxes for 309 Late-type Dwarfs and Subdwarfs
- Evidence for Halo Kinematics among Cool Carbon-Rich Dwarfs
- Astrometry and Photometry for Two Dwarf Carbon Stars
- The Binary Dwarf Carbon Star SDSS J125017.90+252427.6
- Runaway Dwarf Carbon Stars as Candidate Supernova Ejecta
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- The Time-Domain Spectroscopic Survey: Radial Velocity Variability in Dwarf Carbon Stars
- New Clues to the Evolution of Dwarf Carbon Stars From Their Variability and X-ray Emission
- Spectroscopic classification and Gaia DR2 parallaxes of new nearby white dwarfs among selected blue proper motion stars
- Wolf 1465: Not a Bright Dwarf Carbon Star