Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26as...73..225s&link_type=abstract
Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 73, no. 2, May 1988, p. 225-241. Research supported by the U
Astronomy and Astrophysics
Astrophysics
188
H Beta Line, Radial Velocity, Stellar Evolution, Stellar Spectrophotometry, Ubv Spectra, Astronomical Catalogs, Reference Stars, Root-Mean-Square Errors
Scientific paper
A catalog of four-color uvby and H-beta photometry for 711 high-velocity and metal-poor stars is given. The selection of the stars and the observing and reduction techniques used to obtain these data are discussed. The photometry has been transformed closely onto the standard uvby-beta system. The errors of the data have been estimated using both internal and external comparisons. The data are uniform over the sky; that is, there are no significant north-south differences. For the large majority of stars the mean errors of V, m1, c1, and beta are less than + or - 0.008 mag, and the error of b-y is less than + or - 0.005 mag. Values of V, b-y and beta and rough photometric classifications are given for 63 red and/or evolved stars that fall outside the range of the photometric transformations.
Nissen Poul Erik
Schuster William J.
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