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The expanding bipolar shell of the helium nova V445 Puppis
P. A. Woudt, D. Steeghs, M. Karovska +8
From multi-epoch adaptive optics imaging and integral field unit spectroscopy we report the discovery of an expanding and narrowly confined bipolar shell surrounding the helium nov…
A survey for post common-envelope binary stars using GALEX and SDSS photometry
P. F. L. Maxted, B. T. Gaensicke, M. R. Burleigh +5
We report the first results of our programme to obtain multi-epoch radial velocity measurements of stars with a strong far-UV excess to identify post common-envelope binaries (PCEB…
A Stellar Flare during the Transit of the Extrasolar Planet OGLE-TR-10b
Samuel Bentley, Coel Hellier, Pierre Maxted +4
We report a stellar flare occurring during a transit of the exoplanet OGLE-TR-10b, an event not previously reported in the literature. This reduces the observed transit depth, part…
A Dusty Component to the Gaseous Debris Disk around the White Dwarf SDSS J1228+1040
C. S. Brinkworth, B. T. Gaensicke, T. R. Marsh +2
We present ISAAC spectroscopy and ISAAC, UKIDSS and Spitzer Space Telescope broad-band photometry of SDSS J1228+1040 -- a white dwarf for which evidence of a gaseous metal-rich cir…
The astrophysics of ultra-compact binaries
G. Nelemans, M. Wood, P. Groot +24
This white paper briefly describes the astrophysics of ultra-compact binaries, with emphasis of the challenges and opportunities in the next decade.
Hunting high and low: XMM monitoring of the eclipsing polar HU Aquarii
R. Schwarz, A. D. Schwope, J. Vogel +5
We want to study the temporal and spectral behaviour of HU Aqr in the X-ray domain during different accretion states. We obtained spectra and light curves from four different XMM-N…
Optical pulsations from the anomalous X-ray pulsar 1E 1048.1-5937
V. S. Dhillon, T. R. Marsh, S. P. Littlefair +7
We present high-speed optical photometry of the anomalous X-ray pulsar 1E 1048.1-5937 obtained with ULTRACAM on the 8.2-m Very Large Telescope in June 2007. We detect 1E 1048.1-593…