Published by the University of Chicago Press for the Astronomical Society of the Pacific
Publications of the Astronomical Society of the Pacific vol:392 pages:117
Hot Subdwarf Stars and Related Objects edition:3 location:Bamberg, Germany date:23-27 July 2007
We present constraints on the formation of the sdBV+dM eclipsing binary PG 1336-018 derived from a detailed evolutionary study. These are confronted with the orbital solutions permitted by our high-resolution time series VLT/UVES spectra and high-speed multicolour VLT/ULTRACAM photometric observations. We found two orbital solutions (MsdB=0.466 Mȯ and 0.389 Mȯ) which are consistent with the sdB primary having gone through a core-He flash and a common-envelope phase described by the α-formalism.