The Edinburgh-Cape Blue Object Survey - III. Zone 2; galactic latitudes -30° > b > -40°
Abstract
The Edinburgh-Cape Blue Object Survey seeks to identify point sources with an ultraviolet excess. Results for zone 2 of the survey are presented here, covering that part of the South Galactic Cap between 30° and 40° from the Galactic plane and south of about -12.3° of declination. Edinburgh-Cape zone 2 comprises 66 UK Schmidt Telescope fields covering about 1730 deg2, in which we find some 892 blue objects, including 423 hot subdwarfs (∼47 per cent); 128 white dwarfs (∼14 per cent); 25 cataclysmic variables (∼3 per cent); 119 binaries (∼13 per cent), mostly composed of a hot subdwarf and a main-sequence F or G star; 66 horizontal branch stars (∼7 per cent) and 48 `star-like' extragalactic objects (∼5 per cent). A further 362 stars observed in the survey, mainly low-metallicity F- and G-type stars, are also listed. Both low-dispersion spectroscopic classification and UBV photometry are presented for almost all of the hot objects and either spectroscopy or photometry (or both) for the cooler ones.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- May 2013
- DOI:
- 10.1093/mnras/stt158
- Bibcode:
- 2013MNRAS.431..240O
- Keywords:
-
- surveys;
- stars: early-type;
- stars: horizontal branch;
- subdwarfs;
- white dwarfs;
- quasars: general