HZ 9 : a white-dwarf-red-dwarf spectroscopic binary in the Hyades.
Abstract
It is noted that the star HZ 9, a member of the Hyades, is a spectroscopic binary with a period of 0.56433 day. One component is a DA white dwarf and the other is a late main-sequence M star (roughly dM4.5e). The system is similar to V471 Tauri and PG 1413+01; like them, it is probably a post-common-envelope binary.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- February 1981
- DOI:
- 10.1086/158705
- Bibcode:
- 1981ApJ...244..280L
- Keywords:
-
- Binary Stars;
- H Alpha Line;
- M Stars;
- Star Clusters;
- Stellar Spectrophotometry;
- White Dwarf Stars;
- Astronomical Spectroscopy;
- Emission Spectra;
- Late Stars;
- Radial Velocity;
- Stellar Evolution;
- Stellar Mass;
- Astronomy