- UHRA Home
- Browsing by Author
Browsing by Author "Cordes, O."
Now showing items 1-4 of 4
-
HS 2333 + 3927: a new sdB binary with a large reflection effect
Karl, C.; Heber, U.; Drechsel, H.; Napiwotzki, R.; Altmann, M.; Ostensen, R.; Folkes, S.; Solheim, J.E.; Cordes, O.; Voss, B.; Koester, D. (2004)We report the discovery of a binary, HS 2233 + 3927, consisting of an sdB star with a faint companion. From its lightcurve the orbital period of 14,844 s, the mass ratio, the inclination, and other system parameters are ... -
HS 2333 3927: A new sdB dM binary with a large reflection effect
Heber, U.; Drechsel, H.; Ostensen, R.; Karl, C.; Napiwotzki, R.; Altmann, M.; Cordes, O.; Solheim, J.E.; Voss, B.; Koester, D.; Folkes, S. (2004-06) -
The Mass of the sdB Primary of the Binary HS 2333+3927
Heber, U.; Drechsel, H.; Karl, C.; Ostensen, R.; Folkes, S.; Napiwotzki, R.; Altmann, M.; Cordes, O.; Solheim, J.E.; Voss, B.; Koester, D. (Astronomical Society of the Pacific, 2005)Short period sdB binaries with cool companions are crucial to understand pre-CV evolution, because they will evolve into cataclysmic variables, when the sdB will have left the extended horizontal branch. Recently we ... -
MUCHFUSS - massive unseen companions to hot faint underluminous stars from SDSS
Geier, S.; Schaffenroth, V.; Hirsch, H.; Tillich, A.; Heber, U.; Maxted, P. F. L.; Ostensen, R. H.; Barlow, B. N.; O'Toole, S. J.; Kupfer, T.; Marsh, T.; Gaensicke, B.; Napiwotzki, R.; Cordes, O.; Mueller, S.; Classen, L.; Ziegerer, E.; Drechsel, H. (2012-06)The project Massive Unseen Companions to Hot Faint Underluminous Stars from SDSS (MUCHFUSS) aims at finding hot subdwarf stars with massive compact companions (white dwarfs with masses M > 1.0 M?, neutron stars or black ...