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The MUCHFUSS project - Searching for the most massive companions to hot subdwarf stars in close binaries and finding the least massive ones
S. Geier, V. Schaffenroth, H. Hirsch +12
The project Massive Unseen Companions to Hot Faint Underluminous Stars from SDSS (MUCHFUSS) aims at finding hot subdwarf stars with massive compact companions (massive white dwarfs…
A first catalogue of automatically selected UV-excess sources from the UVEX survey
Kars Verbeek, Eelco de Groot, Paul J. Groot +10
We present the first catalogue of point-source UV-excess sources selected from the UVEX survey. UVEX images the Northern Galactic Plane in the U, g, r and HeI5875 bands in the Gala…
Post Common Envelope Binaries from SDSS. XV: Accurate stellar parameters for a cool 0.4-solar mass white dwarf and a 0.16-solar mass M-dwarf in a 3 hour eclipsing binary
S. Pyrzas, B. T. Gaensicke, S. Brady +9
We identify SDSSJ121010.1+334722.9 as an eclipsing post-common-envelope binary, with an orbital period of P ~ 3 hrs, containing a very cool, low-mass, DAZ white dwarf and a low-mas…
DA white dwarfs in SDSS DR7 and a search for infrared excess emission
J. Girven, B. T. Gaensicke, D. Steeghs +1
We present a method which uses colour-colour cuts on SDSS photometry to select white dwarfs with hydrogen rich (DA) atmospheres without the recourse to spectroscopy. This method re…
The MUCHFUSS project - Searching for hot subdwarf binaries with massive unseen companions: Survey, target selection and atmospheric parameters
S. Geier, H. Hirsch, A. Tillich +9
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>1.0 Msun)…
Cataclysmic Variables below the Period Gap: Mass Determinations of 14 Eclipsing Systems
C. D. J. Savoury, S. P. Littlefair, V. S. Dhillon +6
We present high-speed, three-colour photometry of the eclipsing cataclysmic variables CTCV 1300, CTCV 2354 and SDSS 1152. All three systems are below the observed "period gap" for…