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- University of British ColumbiaCA26 papers
- Centre National de la Recherche ScientifiqueFR20 papers
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- University of ViennaAT17 papers
- Center for Astrophysics Harvard & SmithsonianUS16 papers
- Saint Mary's UniversityCA16 papers
- University of ArizonaUS11 papers
- Université du Québec à MontréalCA10 papers
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- Laboratoire d’Astrophysique de MarseilleFR9 papers
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8 papers · 1 filter
Parameter-free Stark Broadening of Hydrogen Lines in DA White Dwarfs
P. -E. Tremblay, P. Bergeron, J. Dupuis
We present new calculations for the Stark broadening of the hydrogen line profiles in the dense atmospheres of white dwarf stars. Our improved model is based on the unified theory…
A Determination of the Luminosity Function of DA White Dwarfs from the Kiso Survey
M. -M. Limoges, P. Bergeron
We rederive the luminosity function for the sample of DA white dwarfs from the Kiso Schmidt ultraviolet excess survey (KUV stars) using the spectroscopic method where the atmospher…
A Photometric Analysis of ZZ Ceti Stars: A Parameter-Free Temperature Indicator?
P. Bergeron, S. K. Leggett, H. C. Harris
We present a model atmosphere analysis of optical VRI and infrared JHK photometric data of about two dozen ZZ Ceti stars. We first show from a theoretical point of view that the re…
The Luminosity Function for White Dwarfs in the SuperCOSMOS Sky Survey
N. R. Rowell, N. C. Hambly, P. Bergeron
We present the techniques and early results of our program to measure the luminosity function for White Dwarfs in the SuperCOSMOS Sky Survey. Our survey covers over three quarters…
Binary Planetary Nebulae Nuclei towards the Galactic Bulge. I. Sample Discovery, Period Distribution and Binary Fraction
B. Miszalski, A. Acker, A. F. J. Moffat +2
Binarity has been hypothesised to play an important, if not ubiquitous, role in the formation of planetary nebulae (PNe). Yet there remains a severe paucity of known binary central…
Pulsation in carbon-atmosphere white dwarfs: A new chapter in white dwarf asteroseismology
G. Fontaine, P. Brassard, P. Dufour +2
We present some of the results of a survey aimed at exploring the asteroseismological potential of the newly-discovered carbon-atmosphere white dwarfs. We show that, in certains re…