A search for star formation around the Galactic halo B-type star PHL 346 with the 2dF spectrograph
Abstract
A preliminary search for stars that may have formed coevally with the apparently young halo B-type star PHL 346 has been performed with the 2dF multifibre spectrograph on the Anglo-Australian Telescope (AAT). Candidates were selected for spectroscopy from APM scans of B and R Schmidt plates centred on PHL 346. A total of 476 stars of spectral type A or F were found; radial velocity estimates and more accurate spectral type assignments narrowed the number of possible coeval candidates to 6 A-type and 14 F-type stars. A statistical analysis of these results using a comparison with a control field suggests that the number of A-type or F-type candidate stars around PHL 346 is not unexpected, and that they need not be associated with PHL 346. A number of ways to improve the project are suggested.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- November 2002
- DOI:
- 10.1046/j.1365-8711.2002.05866.x
- Bibcode:
- 2002MNRAS.336.1287L
- Keywords:
-
- stars: early-type;
- stars: formation;
- stars: individual: PHL 346;
- stars: kinematics;
- Galaxy: halo