Radial velocity search for substellar companions to sdB stars

O'Toole S, Heber U, Geier S, Classen L, De Marco O (2011)

Publication Type: Conference contribution

Publication year: 2011

Journal

AIP Conference Proceedings AIP Publishing

Book Volume: 1331

Pages Range: 170-173

Conference Proceedings Title: AIP Conference Proceedings

ISBN: 9780735408869

DOI: 10.1063/1.3570970

Abstract

After the discovery of a substellar companion to the hot subdwarf HD 149382, we have started a radial velocity search for similar objects around other bright sdB stars using the Anglo-Australian Telescope. Our aim is to test the hypothesis that close substellar companions can significantly affect the post-main sequence evolution of solar-type stars. It has previously been proposed that binary interactions in this scenario could lead to the formation of hot subdwarfs. The detection of such objects will provide strong evidence that Jupiter-mass planets can survive the interaction with a solar-type star as it evolves up the Red Giant Branch. We present the first results of our search here. © 2011 American Institute of Physics.

Authors with CRIS profile

Ulrich Heber Naturwissenschaftliche Fakultät Stephan Geier Dr.Karl-Remeis-Sternwarte Bamberg, Astronomisches Institut Lew Classen Dr.Karl-Remeis-Sternwarte Bamberg, Astronomisches Institut

Involved external institutions

Australian Astronomical Observatory AU Australia (AU) Macquarie University AU Australia (AU)

How to cite

APA:

O'Toole, S., Heber, U., Geier, S., Classen, L., & De Marco, O. (2011). Radial velocity search for substellar companions to sdB stars. In AIP Conference Proceedings (pp. 170-173).

MLA:

O'Toole, Simon, et al. "Radial velocity search for substellar companions to sdB stars." Proceedings of the International Conference "Planetary Systems Beyond the Main Sequence" 2011. 170-173.

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