Back to Search Start Over

Distances of Dwarf Carbon Stars

Authors :
Harris, Hugh C.
Dahn, Conard C.
Subasavage, John P.
Munn, Jeffrey A.
Canzian, Blaise J.
Levine, Stephen E.
Monet, Alice B.
Pier, Jeffrey R.
Stone, Ronald C.
Tilleman, Trudy M.
Hartkopf, William I.
Publication Year :
2018

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.<br />Comment: 9 pages, 5 figures, accepted by Astronomical Journal

Details

Database :
arXiv
Publication Type :
Report
Accession number :
edsarx.1804.09824
Document Type :
Working Paper
Full Text :
https://doi.org/10.3847/1538-3881/aac100