48 citations · 325 across the 15 of their papers we have counts for
5 papers · 1 filter
On the Spectral Evolution of Hot White Dwarf Stars. II. Time-dependent Simulations of Element Transport in Evolving White Dwarfs with STELUM
A. Bédard, P. Brassard, P. Bergeron +1
White dwarf stars are subject to various element transport mechanisms that can cause their surface composition to change radically as they cool, a phenomenon known as spectral evol…
Hot Degenerates in the MCT Survey. III. A Sample of White Dwarf Stars in the Southern Hemisphere
P. Bergeron, F. Wesemael, G. Fontaine +7
We present optical spectra of 144 white dwarfs detected in the Montreal-Cambridge-Tololo (MCT) colorimetric survey, including 120 DA, 12 DB, 4 DO, 1 DQ, and 7 DC stars. We also per…
The Discovery of Two LISA Sources within 0.5 kpc
Mukremin Kilic, Warren R. Brown, A. Bedard +1
We report the discovery of the brightest detached binary white dwarfs with periods less than an hour, which provide two new gravitational wave verification binaries for the Laser I…
The Most Massive White Dwarfs in the Solar Neighborhood
Mukremin Kilic, P. Bergeron, Simon Blouin +1
We present an analysis of the most massive white dwarf candidates in the Montreal White Dwarf Database 100 pc sample. We identify 25 objects that would be more massive than $1.3~M_…
Hidden in Plain Sight: A Double-lined White Dwarf Binary 26 pc Away and a Distant Cousin
Mukremin Kilic, A. Bedard, P. Bergeron
We present high-resolution spectroscopy of two nearby white dwarfs with inconsistent spectroscopic and parallax distances. The first one, PG 1632+177, is a 13th magnitude white dwa…