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arXiv · 1112.0977

Radial velocity monitoring of long period hot subdwarf + main sequence binaries with HERMES@Mercator

Roy H. Østensen·Hans Van Winckel
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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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Roy H. Østensen, Hans Van Winckel. 2011-12-05. Radial velocity monitoring of long period hot subdwarf + main sequence binaries with HERMES@Mercator. https://arxiv.org/abs/1112.0977

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