Analysis of high-latitude blue stars. II

Astronomy and Astrophysics – Astronomy

Scientific paper

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Blue Stars, Early Stars, Stellar Spectra, H Gamma Line, Helium, Line Spectra, O Stars, Stellar Luminosity

Scientific paper

A simple analysis of five high-latitude early-type stars is presented. Reticon spectra and Strömgren photometry are used to determine Teff and log g from "Kiel diagrams" and values of V sin i are estimated from He I lines. The results are checked by fitting Kurucz (1979) profiles to the observed Hγ and Hδ profiles. Four stars appear spectroscopically normal although one might be subluminous; implied distances from the galactic plane are between 3 and 15 kpc. One star, TONS 308, could be a spectrum variable.

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