The Incidence of Binaries among Very Metal-poor Carbon Stars

Details The Incidence of Binaries among Very Metal-poor Carbon Stars The Incidence of Binaries among Very Metal-poor Carbon Stars

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aj....122.1545p&link_type=abstract

The Astronomical Journal, Volume 122, Issue 3, pp. 1545-1560.

Astronomy and Astrophysics

Astronomy

76

Stars: Binaries: Eclipsing, Stars: Abundances, Stars: Carbon, Stars: Evolution

Scientific paper

We have monitored the radial velocities of seven very metal-poor stars with abnormally strong CH G bands. On the basis of their colors four are giants (gCH) and three are subgiants (sgCH). Three of the gCH stars are definite spectroscopic binaries with long periods, 505 days

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