39 citations · 111 across the 5 of their papers we have counts for
5 papers
An emerging and enigmatic spectral class of isolated DAe white dwarfs
Abbigail K. Elms, Pier-Emmanuel Tremblay, Boris T. Gänsicke +9
Two recently discovered white dwarfs, WDJ041246.84754942.26 and WDJ165335.21100116.33, exhibit H and H Balmer line emission similar to stars in the emerging DAHe class,…
The ubiquity of carbon dredge-up in hydrogen-deficient white dwarfs as revealed by GALEX
Simon Blouin, Mukremin Kilic, Antoine Bédard +1
The convective dredge-up of carbon from the interiors of hydrogen-deficient white dwarfs has long been invoked to explain the presence of carbon absorption features in the spectra…
Carbon dredge-up required to explain the Gaia white dwarf colour-magnitude bifurcation
Simon Blouin, Antoine Bédard, Pier-Emmanuel Tremblay
The Gaia colour--magnitude diagram reveals a striking separation between hydrogen-atmosphere white dwarfs and their helium-atmosphere counterparts throughout a significant portion…
On the Spectral Evolution of Hot White Dwarf Stars. IV. The Diffusion and Mixing of Residual Hydrogen in Helium-rich White Dwarfs
A. Bédard, P. Bergeron, P. Brassard
In the framework of our extensive modeling study of the spectral evolution of white dwarfs, we present here a new set of detailed calculations of the transport of residual hydrogen…
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…