Hot white dwarfs, OB subdwarfs and dark clouds
Creators
- 1. Mount Stromlo and Siding Spring Observatories, Canberra (Australia)
- 2. Australian National Univ., Canberra
- 3. Dartmouth College, Hanover, NH (USA)
- 4. California Institute of Technology, Pasadena (USA)
- 5. Royal Greenwich Observatory, Herstmonceux (England)
Description
A method is described which uses UBV photographic photometry to survey obscured regions in the Galactic plane for hot white dwarfs and OB subdwarfs. From an initial survey of two regions, the first towards the Coalsack and the second covering part of the Scorpius-Centaurus cloud, at least six white dwarfs, one probable interacting binary, five B subdwarfs, and two O subdwarfs have been found. The space densities computed from these, admittedly sparse, statistics are similar to those deduced from Green's (1980) analysis of the Palomar-Green survey and thus a factor of 3 higher than Fleming et al.'s (1986) reanalysis of those data. A space density of about 0.02 stars/cu pc for white dwarfs with M(V) less than or equal to 13.0 is found. 42 references
Additional details
Publishing Information
- Journal Title
- Astronomical Journal
- Journal Volume
- 96
- Series
- Astron. J.
- Journal Page Range
- 275-296
- ISSN
- 0004-6256
- CODEN
- ANJOA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 20000897
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- BINARY STARS; COSMIC GASES; DENSITY; INTERSTELLAR SPACE; MAIN SEQUENCE STARS; MILKY WAY; NONLUMINOUS MATTER; PHOTOMETRY; SPATIAL DISTRIBUTION; WHITE DWARF STARS
- Descriptors DEC
- DISTRIBUTION; DWARF STARS; FLUIDS; GALAXIES; GASES; MATTER; PHYSICAL PROPERTIES; SPACE; STARS