activity
20062023
most citedAn Improved Spectroscopic Analysis of DA White Dwarfs from the Sloan Digital Sky Survey Data Release 4

449 citations · 5.3k across the 83 of their papers we have counts for

collaborators

83 papers

astro-ph.SR2023

An HST COS ultra-violet spectroscopic survey of 311 DA white dwarfs.I. Fundamental parameters and comparative studies

Snehalata Sahu, Boris T. Gaensicke, Pier-Emmanuel Tremblay +8

White dwarf studies carry significant implications across multiple fields of astrophysics, including exoplanets, supernova explosions, and cosmological investigations. Thus, accura…

astro-ph.SR2023★ 17 cited

A rotating white dwarf shows different compositions on its opposite faces

Ilaria Caiazzo, Kevin B. Burdge, Pier-Emmanuel Tremblay +35

White dwarfs, the extremely dense remnants left behind by most stars after their death, are characterised by a mass comparable to that of the Sun compressed into the size of an Ear…

astro-ph.SR2023★ 10 cited

An Eclipsing 47 minute Double White Dwarf Binary at 400 pc

James Munday, P. -E. Tremblay, J. J. Hermes +20

We present the discovery of the eclipsing double white dwarf (WD) binary WDJ 022558.21-692025.38 that has an orbital period of 47.19 min. Following identification with the Transiti…

astro-ph.SR2023★ 9 cited

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,…

astro-ph.SR2023★ 14 cited

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…

astro-ph.SR2023★ 26 cited

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…