Feige 24: a very hot white dwarf.
Abstract
OAO-2 ultraviolet photometry of the composite spectrum white dwarf Feige 24 is compared with model atmospheres to derive an effective temperature of 70,000 (+20,000, -15,000) K. The distance to this star is estimated to be 90 (+55, -31) pc if the cool component is assumed to be a main-sequence star with a red and near-infrared energy distribution that is normal for its spectral type. The derived characteristics of Feige 24 are compatible with its identification as the extreme-ultraviolet source observed by Margon et al.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- December 1976
- DOI:
- 10.1086/182310
- Bibcode:
- 1976ApJ...210L..87H
- Keywords:
-
- Hot Stars;
- Stellar Spectrophotometry;
- Ultraviolet Photometry;
- Visual Photometry;
- White Dwarf Stars;
- Far Ultraviolet Radiation;
- Main Sequence Stars;
- Oao 2;
- Spaceborne Astronomy;
- Stellar Temperature;
- Astrophysics