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Browsing by Author "Tillich, A."
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Binaries discovered by the MUCHFUSS project SDSS J08205+0008 - An eclipsing subdwarf B binary with brown dwarf companion
Geier, S.; Schaffenroth, V.; Drechsel, H.; Heber, U.; Kupfer, T.; Tillich, A.; Ostensen, R.; Smolders, K.; Degroote, P.; Maxted, P.F.L.; Barlow, B.N.; Gansicke, B.T.; Marsh, T.R.; Napiwotzki, R. (2011)Hot subdwarf B stars (sdBs) are extreme horizontal branch stars believed to originate from close binary evolution. Indeed about half of the known sdB stars are found in close binaries with periods ranging from a few hours ... -
The Hyper-MUCHFUSS project : probing the Galactic halo with sdB stars
Tillich, A.; Heber, U.; Geier, S.; Hirsch, H.; Maxted, P.F.L.; Gansicke, B.T.; Marsh, T.R.; Napiwotzki, R.; Ostensen, R.; Scholz, R.D. (2011)Context. High-velocity stars in the Galactic halo, e. g. the so-called hyper-velocity stars (HVS), are important tracers of the properties of the dark matter halo, in particular its mass. Aims. A search for the fastest ... -
Massive unseen companions to hot faint underluminous stars from SDSS (MUCHFUSS) - Analysis of seven close subdwarf B binaries
Geier, S.; Maxted, P.F.L.; Napiwotzki, R.; Ostensen, R.; Heber, U.; Hirsch, H.; Kupfer, T.; Muller, S.; Tillich, A.; Barlow, B.N.; Oreiro, R.; Ottosen, T.A.; Copperwheat, C.; Gansicke, B.T.; Marsh, T.R. (2011)The project Massive Unseen Companions to Hot Faint Underluminous Stars from SDSS (MUCHFUSS) aims at finding hot subdwarf stars with massive compact companions like massive white dwarfs (M > 1.0 ), neutron stars or stellar ... -
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 ... -
The MUCHFUSS project - Searching for hot subdwarf binaries with massive unseen companions : survey, target selection and atmospheric parameters
Geier, S.; Hirsch, H.; Tillich, A.; Maxted, P.F.L.; Bentley, S.J.; Ostensen, R.; Heber, U.; Gansicke, B.T.; Marsh, T.R.; Napiwotzki, R.; Barlow, B.N.; O'Toole, S. (2011)The project Massive Unseen Companions to Hot Faint Underluminous Stars from SDSS (MUCHFUSS) aims at finding sdBs with compact companions like supermassive white dwarfs (M > 1.0M⊙), neutron stars or black holes. The existence ...