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| Paper: |
Properties of Hot Subdwarfs in the GALEX
Survey |
| Volume: |
452, Fifth Meeting on Hot Subdwarf Stars and Related Objects |
| Page: |
33 |
| Authors: |
Nemeth, P.; Kawka, A.; Vennes, S. |
| Abstract: |
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. |
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