43 citations · 91 across the 15 of their papers we have counts for
4 papers · 1 filter
Exogeological inferences from white dwarf pollutants: the impact of stellar physics
Andrew M. Buchan, Pier-Emmanuel Tremblay, Antoine Bédard +2
Many white dwarfs have accreted material from their own planetary systems. These objects can be used to infer the composition of exoplanetary material and identify evidence for key…
White dwarfs as probes of extrasolar planet compositions and fundamental astrophysics
Siyi Xu, Martin Barstow, Andy Buchan +2
White dwarfs represent the most common end stage of stellar evolution and are important for a range of astrophysical questions. The high-resolution ultraviolet spectroscopic capabi…
Measurements of three exo-planetesimal compositions: a planetary core, a chondritic body, and an icy Kuiper belt analogue
Jamie T. Williams, Boris T. Gänsicke, Snehalata Sahu +6
The study of planetesimal debris accreted by white dwarfs offers unique insights into the composition of exoplanets. Using far-ultraviolet and optical spectroscopy, we have analyse…
Characterizing planetary material accreted by cool helium atmosphere white dwarfs using an exponentially decaying disc model
Mairi W. O'Brien, Pier-Emmanuel Tremblay, Beth L. Klein +5
We present Keck High Resolution Echelle Spectrometer (HIRES) observations and model atmosphere analysis for two nearby, cool, helium-dominated atmosphere white dwarfs that have bee…