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Properties of hot subdwarfs in the GALEX survey by Nemeth, Peter; Kawka, Adela; Vennes, Stephane is a scholarly article available to read on EtoBox.

What is Properties of hot subdwarfs in the GALEX survey about?

We have analyzed a sample of hot subdwarfs (sdB, sdO) selected from the GALEX ultraviolet sky survey. Applying a model atmosphere analysis we determined the temperature, surface gravity, and helium-to-hydrogen abundance ratio, and obtained preliminary constraints on the CNO abundance for a sample of 181 stars. Adopting colourimetric (ultraviolet-infrared) and quantitative spectral decomposition we also investigated the incidence of solar type or earlier (A, F, G) companions.

Author

Nemeth, Peter; Kawka, Adela; Vennes, Stephane

Published

2012

Language

EN