UBV photometry of HK survey stars (Preston+, 1991)

Details UBV photometry of HK survey stars (Preston+, 1991) UBV photometry of HK survey stars (Preston+, 1991)

Jan 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995ycat..20761001p&link_type=abstract

VizieR On-line Data Catalog: J/ApJS/76/1001. Originally published in: 1991ApJS...76.1001P

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Photometry: Ubv

Scientific paper

Photoelectric UBV observations of 1782 stars are used to explore properties of the HK objective-prism survey conducted by Beers, Preston, and Shectman with the Curtis-Schmidt telescope of the Cerro Tololo Inter-American Observatory. We construct an intrinsic (U-B)0 versus (B-V)0 relation for blue horizontal branch stars and use it to derive estimates of E(B-V) color excesses in 50 survey fields. Comparison of these with the reddening maps of Burstein and Heiles indicates good agreement except in low-latitude fields toward the Galactic bulge. We describe qualitative features of the stellar content of the HK survey by use of unreddened two-color diagrams and indicate how the photometric data may prove useful in several applications. Finally, we use a halo density model to estimate the variation of completeness with apparent magnitude, B, in our catalog of field horizontal branch star candidates.
(3 data files).

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