Photoelectric UVBY beta photometry of 230 stars brighter than m(pg) = 13.0 in the two B = +75 deg fields SA 80 and SA 81

Details Photoelectric UVBY beta photometry of 230 stars brighter than m(pg) = 13.0 in the two B = +75 deg fields SA 80 and SA 81 Photoelectric UVBY beta photometry of 230 stars brighter than m(pg) = 13.0 in the two B = +75 deg fields SA 80 and SA 81

Apr 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26as...98..213k&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 98, no. 2, p. 213-228.

Astronomy and Astrophysics

Astrophysics

2

A Stars, F Stars, Stellar Magnitude, Stellar Spectrophotometry, Ubv Spectra, Early Stars, Galactic Halos, Metallicity, Stellar Luminosity

Scientific paper

The study presents uvby and beta photometry for 123 and 107 stars in SA 80 and SA 81 brighter than m(pg) = 13 and earlier than G1. Most stars seem to be of type A or F with sample limits V is not greater than 12.6 and beta is not less than 2.60. SA 80 and SA 81 have 34 and 27 BD stars in common with a general b is not less than 70 deg program, respectively. uvby photometry for 19 and 12 stars fainter than m(pg) = 13 is also presented. If situated on the standard line, the sample of absolutely less luminous F9-G0 stars are complete in the volume confined to the distance range from 80 to 300-400 pc. Several lines of sight have E(b-y) exceeding 0.050 m. In both areas the remote A stars seem to be virtually unreddened or are perhaps bluer than typical for population I stars. SA 80 covers part of the Virgo cluster, and the data may be used to estimate the galactic reddening in this direction.

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