142 citations · 1.3k across the 30 of their papers we have counts for
30 papers
Diffusion coefficients in the envelopes of white dwarfs
R. A. Heinonen, D. Saumon, J. Daligault +3
The diffusion of elements is a key process in understanding the unusual surface composition of white dwarfs stars and their spectral evolution. The diffusion coefficients of Paquet…
A Convective Dredge-Up Model as the Origin of Hydrogen in DBA White Dwarfs
B. Rolland, P. Bergeron, G. Fontaine
We revisit the problem of the formation of DB white dwarfs, as well as the origin of hydrogen in DBA stars, using a new set of envelope model calculations with stratified and mixed…
Calibration of the mixing length theory for structures of helium-dominated atmosphere white dwarfs
Cukanovaite E., P. -E. Tremblay, B. Freytag +5
We perform a calibration of the mixing length parameter at the bottom boundary of the convection zone for helium-dominated atmospheres of white dwarfs. This calibration is based on…
Measurements of Physical Parameters of White Dwarfs: A Test of the Mass-Radius Relation
Antoine Bédard, Pierre Bergeron, Gilles Fontaine
We present a detailed spectroscopic and photometric analysis of 219 DA and DB white dwarfs for which trigonometric parallax measurements are available. Our aim is to compare the ph…
A Model of the Pulsating Extremely Low-Mass White Dwarf Precursor WASP 0247-25B
Alina G. Istrate, Gilles Fontaine, Christian Heuser
We present an analysis of the evolutionary and pulsation properties of the extremely low-mass white dwarf precursor (B) component of the double-lined eclipsing system WASP 0247-25.…
Just how hot are the Centauri extreme horizontal branch pulsators?
M. Latour, S. K. Randall, P. Chayer +5
Past studies based on optical spectroscopy suggest that the five Cen pulsators form a rather homogeneous group of hydrogen-rich subdwarf O stars with effective temperatures of…