230 citations · 3.8k across the 83 of their papers we have counts for
9 papers · 1 filter
Most EL CVn systems are inner binaries of hierarchical triples
F. Lagos, M. R. Schreiber, S. G. Parsons +2
In spite of their importance for modern astronomy, we do not fully understand how close binary stars containing at least one white dwarf form from main sequence binary stars. The d…
The white dwarf binary pathways survey V. The Gaia white dwarf plus AFGK binary sample and the identification of 23 close binaries
J. -J. Ren, R. Raddi, A. Rebassa-Mansergas +22
Close white dwarf binaries consisting of a white dwarf and an A, F, G or K type main sequence star, henceforth close WD+AFGK binaries, are ideal systems to understand the nature of…
white dwarfs within 40 pc I: spectroscopic observations of new candidates
P. -E. Tremblay, M. A. Hollands, N. P. Gentile Fusillo +30
We present a spectroscopic survey of 230 white dwarf candidates within 40 pc of the Sun from the William Herschel Telescope and Gran Telescopio Canarias. All candidates were select…
The dust never settles: collisional production of gas and dust in evolved planetary systems
Andrew Swan, Jay Farihi, Thomas G. Wilson +1
Multi-epoch infrared photometry from Spitzer is used to monitor circumstellar discs at white dwarfs, which are consistent with disrupted minor planets whose debris is accreted and…
WD1032+011, an inflated brown dwarf in an old eclipsing binary with a white dwarf
S. L. Casewell, C. Belardi, S. G. Parsons +11
We present the discovery of only the third brown dwarf known to eclipse a non-accreting white dwarf. Gaia parallax information and multi-colour photometry confirm that the white dw…
Spectroscopic and Photometric Periods of Six Ultracompact Accreting Binaries
Matthew J. Green, Thomas R. Marsh, Philip J. Carter +19
Ultracompact accreting binary systems each consist of a stellar remnant accreting helium-enriched material from a compact donor star. Such binaries include two related sub-classes,…
A pulsating white dwarf in an eclipsing binary
Steven G. Parsons, Alexander J. Brown, Stuart P. Littlefair +8
White dwarfs are the burnt out cores of Sun-like stars and are the final fate of 97% of all stars in our Galaxy. The internal structure and composition of white dwarfs are hidden b…
The White Dwarf Binary Pathways Survey III: contamination from hierarchical triples containing a white dwarf
F. Lagos, M. R. Schreiber, S. G. Parsons +12
The White Dwarf Binary Pathways Survey aims at increasing the number of known detached A, F, G and K main sequence stars in close orbits with white dwarf companions (WD+AFGK binari…
Gravity and limb-darkening coefficients for compact stars: DA, DB, and DBA eclipsing white dwarfs
A. Claret, E. Cukanovaite, K. Burdge +3
The main objective of the present work is to extend these investigations by computing the gravity and limb-darkening coefficients for white dwarf atmosphere models with hydrogen, h…