HE 0027-5416 , the SIMBAD biblio

2005A&A...431..143C - Astronomy and Astrophysics, volume 431, 143-148 (2005/2-3)

The stellar content of the Hamburg/ESO survey. III. Field horizontal-branch stars in the Galaxy.

CHRISTLIEB N., BEERS T.C., THOM C., WILHELM R., ROSSI S., FLYNN C., WISOTZKI L. and REIMERS D.

Abstract (from CDS):

We present a sample of 8321 candidate Field Horizontal-Branch (FHB) stars selected by automatic spectral classification in the digital data base of the Hamburg/ESO objective-prism survey. The stars are distributed over 8225 square degrees of the southern sky, at |b|>30°. The average distance of the sample, assuming that they are all FHB stars, is 9.8kpc, and distances of up to ∼30kpc are reached. Moderate-resolution spectroscopic follow-up observations and UBV photometry of 125 test sample stars demonstrate that the contamination of the full candidate sample with main-sequence A-type stars is <16%, while it would be up to 50% in a flux-limited sample at high galactic latitudes. Hence more than ∼ 6800 of our FHB candidates are expected to be genuine FHB stars. The candidates are being used as distance probes for high-velocity clouds and for studies of the structure and kinematics of the Galactic halo.

Abstract Copyright:

Journal keyword(s): stars: horizontal-branch - Galaxy: halo - Galaxy: kinematics and dynamics - surveys - methods: statistical

VizieR on-line data: <Available at CDS (J/A+A/431/143): tabla1.dat>

Simbad objects: 8321

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