3 papers
astro-ph.SR2011
GALEX J201337.6+092801: The lowest gravity subdwarf B pulsator
Roy H Østensen, Peter I Pápics, Raquel Oreiro +8
We present the recent discovery of a new subdwarf B variable (sdBV), with an exceptionally low surface gravity. Our spectroscopy of J20136+0928 places it at Teff = 32100 +/- 500, l…
astro-ph.SR2011
RAT J0455+1305: A rare hybrid pulsating subdwarf B star
A. S. Baran, J. T. Gilker, L. Fox-Machado +2
We present results on the second-faintest pulsating subdwarf B (sdB) star known, RAT J0455+1305, derived from photometric data obtained in 2009. It shows both short and long period…
astro-ph.SR2011
J08069+1527: A newly discovered high amplitude, hybrid subdwarf B pulsator
A. S. Baran, J. T. Gilker, M. D. Reed +5
We present our discovery of a new hybrid pulsating subdwarf B star, J08069+1527. The effective temperature and surface gravity of 28,500400\,K and 5.370.04\,dex, respecti…