Geier S, Heber U, Tillich A, Hirsch H, Kupfer T, Schaffenroth V, Classen L, Maxted PF, Østensen RH, Barlow BN, Marsh TR, Gänsicke BT, Napiwotzki R, O'Toole SJ, Günther EW (2011)
Publication Type: Conference contribution
Publication year: 2011
Book Volume: 1331
Pages Range: 163-169
Conference Proceedings Title: AIP Conference Proceedings
ISBN: 9780735408869
DOI: 10.1063/1.3570969
We give a brief review over the observational evidence for close substellar companions to hot subdwarf stars. The formation of these core helium-burning objects requires huge mass loss of their red giant progenitors. It has been suggested that besides stellar companions substellar objects in close orbits may be able to trigger this mass loss. Such objects can be easily detected around hot subdwarf stars by medium or high resolution spectroscopy with an RV accuracy at the km s-1-level. Eclipsing systems of HW Vir type stick out of transit surveys because of their characteristic light curves. The best evidence that substellar objects in close orbits around sdBs exist and that they are able to trigger the required mass loss is provided by the eclipsing system SDSS J0820+0008, which was found in the course of the MUCHFUSS project. Furthermore, several candidate systems have been discovered. © 2011 American Institute of Physics.
APA:
Geier, S., Heber, U., Tillich, A., Hirsch, H., Kupfer, T., Schaffenroth, V.,... Günther, E.W. (2011). Substellar companions and the formation of hot subdwarf stars. In AIP Conference Proceedings (pp. 163-169).
MLA:
Geier, Stephan, et al. "Substellar companions and the formation of hot subdwarf stars." Proceedings of the International Conference "Planetary Systems Beyond the Main Sequence" 2011. 163-169.
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