463 citations · 5.5k across the 77 of their papers we have counts for
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3D spectroscopic analysis of helium-line white dwarfs
Elena Cukanovaite, Pier-Emmanuel Tremblay, Pierre Bergeron +3
In this paper, we present corrections to the spectroscopic parameters of DB and DBA white dwarfs with -10.0 < log(H/He) < -2.0, 7.5 < log(g) < 9.0 and 12000 K < T_eff < 34000 K, ba…
On the Spectral Evolution of Hot White Dwarf Stars. I. A Detailed Model-Atmosphere Analysis of Hot White Dwarfs from SDSS DR12
A. Bédard, P. Bergeron, P. Brassard +1
As they evolve, white dwarfs undergo major changes in surface composition, a phenomenon known as spectral evolution. In particular, some stars enter the cooling sequence with heliu…
Carbon star formation as seen through the non-monotonic initial-final mass relation
Paola Marigo, Jeffrey D. Cummings, Jason Lee Curtis +13
The initial-final mass relation (IFMR) links the birth mass of a star to the mass of the compact remnant left at its death. While the relevance of the IFMR across astrophysics is u…
The 100 pc White Dwarf Sample in the SDSS Footprint
Mukremin Kilic, P. Bergeron, Alekzander Kosakowski +3
We present follow-up spectroscopy of 711 white dwarfs within 100 pc, and present a detailed model atmosphere analysis of the 100 pc white dwarf sample in the SDSS footprint. Our sp…
Two new Double-lined Spectroscopic Binary White Dwarfs
Mukremin Kilic, A. Bedard, P. Bergeron +1
We present radial velocity observations of four binary white dwarf candidates identified through their over-luminosity. We identify two new double-lined spectroscopic binary system…
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…