159 citations · 328 across the 7 of their papers we have counts for
7 papers
The OmegaWhite Survey for Short-Period Variable Stars IV: Discovery of the warm DQ white dwarf OW J175358.85-310728.9
S. A. Macfarlane, P. A. Woudt, P. Dufour +10
We present the discovery and follow-up observations of the second known variable warm DQ white dwarf OW J175358.85-310728.9 (OW J1753-3107). OW J1753-3107 is the brightest of any o…
Follow-up Observations of the Second and Third Known Pulsating Hot DQ White Dwarfs
P. Dufour, E. M. Green, G. Fontaine +3
We present follow-up time-series photometric observations that confirm and extend the results of the significant discovery made by Barlow et al.(2008) that the Hot DQ white dwarfs…
SDSS J142625.71+575218.3: The First Pulsating White Dwarf with a Large Detectable Magnetic Field
P. Dufour, G. Fontaine, J. Liebert +2
We report the discovery of a strong magnetic field in the unique pulsating carbon-atmosphere white dwarf SDSS J142625.71+575218.3. From spectra gathered at the MMT and Keck telesco…
SDSS J142625.71+575218.3, a Prototype for a New Class of Variable White Dwarf
M. H. Montgomery, Kurtis A. Williams, D. E. Winget +3
We present the results of a search for pulsations in six of the recently discovered carbon-atmosphere white dwarf ("hot DQ") stars. Based on our theoretical calculations, the star…
Might Carbon-Atmosphere White Dwarfs Harbour a New Type of Pulsating Star?
G. Fontaine, P. Brassard, P. Dufour
In the light of the recent and unexpected discovery of a brand new type of white dwarfs, those with carbon-dominated atmospheres, we examine the asteroseismological potential of su…
The "DODO" survey I: limits on ultra-cool substellar and planetary-mass companions to van Maanen's star (vMa 2)
M. R. Burleigh, F. J. Clarke, E. Hogan +8
We report limits in the planetary-mass regime for companions around the nearest single white dwarf to the Sun, van Maanen's star (vMa 2), from deep J-band imaging with Gemini North…