Photoelectric H-beta photometry for A and F stars brighter than V = 14 M in four areas in directions towards the South Galactic Pole

Astronomy and Astrophysics – Astrophysics

Scientific paper

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A Stars, Electrophotometry, F Stars, H Beta Line, Southern Sky, Stellar Luminosity, Stellar Spectrophotometry, Astronomical Catalogs, Magnetic Poles, Milky Way Galaxy, Stellar Magnitude, Ubv Spectra

Scientific paper

Data from photoelectric H-beta observations of 145 mainly A and F stars with V = 14 mag or brighter in four regions totalling 60 sq deg and located near galactic latitude b(II) = -60 deg, obtained using a two-channel H-beta photometer on the 1.5-m Danish reflecting telescope at ESO on two nights in 1981 and four nights in 1982, are presented in tables along with the Stromgren b magnitudes calculated from the wide-channel H-beta counts. These observations are undertaken in the framework of a uvby photometric search for A-F stars of Population II brighter than V = 15.5 mag. The mean error per observation is given as + or - 0.020 mag in b and + or - 0.009 mag in H-beta.

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