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| Paper: |
Binary Properties of Subdwarfs Selected in the GALEX Survey |
| Volume: |
452, Fifth Meeting on Hot Subdwarf Stars and Related Objects |
| Page: |
121 |
| Authors: |
Kawka, A.; Pigulski, A.; O'Toole, S.; Vennes, S.; Németh, P.; Williams, A.; Iliev, L.; Kołaczkowski, Z.; Stȩślicki, M. |
| Abstract: |
We describe our programme to identify and analyse binary stars among
the bright subdwarfs selected in the Galaxy Evolution Explorer (GALEX) survey.
Radial velocity time-series helped us identify
subdwarfs with low-mass or compact stellar companions: We describe work
conducted on the bright binaries GALEX J0321+4727
and GALEX J2349+3844, and we present a radial velocity study of several objects
that include three new likely binaries. We also carried out photometric observations
that allowed us to detect long period pulsations in the subdwarf components in two
of the close binaries. |
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