The Stellar Content of the Hamburg/ESO Survey

Details The Stellar Content of the Hamburg/ESO Survey The Stellar Content of the Hamburg/ESO Survey

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004msngr.117...40c&link_type=abstract

The Messenger (ISSN0722-6691), No.117, p. 40-46 (September 2004)

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Scientific paper

We report on the exploitation of the stellar content of the Hamburg/ESO objective-prism survey (HES), which covers the total southern extragalactic sky down to B A* 17.5. Quantitative criteria have been developed for selecting interesting stars in the digital HES database, containing almost 5 million spectra. We give an overview of ongoing projects directed at finding extremely metal-poor stars, field-horizontal branch A-type stars, carbon stars, and white dwarfs. Highlights of these efforts are the discovery of more than 200 new extremely metal-poor ([Fe/H] < -3.0) stars, including the most metal-poor star known so far, HE0107-5240 ([Fe/H] = -5.3), and the discovery of many new magnetic DA and DB white dwarfs and other peculiar white dwarfs.

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