Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991pasp..103..973d&link_type=abstract
Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 103, Sept. 1991, p. 973-986.
Astronomy and Astrophysics
Astronomy
18
Electrophotometry, Sky Surveys (Astronomy), Stellar Physics, Stellar Spectrophotometry, Ubv Spectra, Giant Stars, Horizontal Branch Stars, Metallicity, Northern Sky, Subgiant Stars
Scientific paper
Photoelectric UBV photometry is presented for a sample of 165 stars drawn from the extension of the HK objective-prism/interference-filter survey of Beers, Preston, and Shectman to the northern galactic hemisphere. These results are part of continuing follow-up observations of candidate metal-deficient and horizontal-branch field stars and other interesting stars identified in the survey. A complete set of photometric observations is now available for three of the 25-square-degree survey fields. The complete photometric sample of 299 northern HK candidates obtained to date contains on order 90 main-sequence turnoff, subgiant, and giant stars with (Fe/H) of less than or equal to -1.0, 50 field blue horizontal-branch stars, and 30 stars with the photometric properties of field-blue stragglers.
Beers Timothy C.
Doinidis Steve P.
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