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| Paper: |
Radial-velocity Monitoring of Long-period Hot-subdwarf +
Main-sequence Binaries with HERMES@Mercator |
| Volume: |
452, Fifth Meeting on Hot Subdwarf Stars and Related Objects |
| Page: |
163 |
| Authors: |
Østensen, R. H.; Van Winckel, H. |
| Abstract: |
Population synthesis models predict that the majority of sdBs form through
stable mass transfer leading to long period binaries.
To date, about a hundred close short-period binaries with an sdB component
have been found, but not a single long-period system has been established.
We show preliminary results from our recent effort in determining
orbits for a sample of long-period sdB systems using the HERMES spectrograph on the Mercator telescope. |
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