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ESPRESSO observations of the debris-accreting white dwarf WD\,0141--675
Sergio H. Ramirez, Boris T. Gaensicke, Detlev Koester +2
WD\,0141--675 was reported as the first astrometrically detected white dwarf planet host candidate as part of the third data release from \textit{Gaia}, just to be later retracted…
Ultraviolet extinction correlation with 3D dust maps using white dwarfs
Snehalata Sahu, Pier-Emmanuel Tremblay, Rosine Lallement +2
Accurate astrometric and photometric measurements from Gaia have led to the construction of 3D dust extinction maps which can now be used for estimating the integrated extinctions…
Most extremely low mass white dwarfs with non-degenerate companions are inner binaries of hierarchical triples
Felipe Lagos-Vilches, Mercedes Hernandez, Matthias R. Schreiber +2
Extremely-low-mass white dwarfs (ELM WDs) with non-degenerate companions are believed to originate from solar-type main-sequence binaries undergoing stable Roche lobe overflow mass…
The frequency of transiting planetary systems around polluted white dwarfs
Akshay Robert, Jay Farihi, Vincent Van Eylen +6
This paper investigates the frequency of transiting planetary systems around metal-polluted white dwarfs using high-cadence photometry from ULTRACAM and ULTRASPEC on the ground, an…
Cataclysmic variables from Sloan Digital Sky Survey -- V (2020-2023) identified using machine learning
Keith Inight, Boris T. Gänsicke, Axel Schwope +16
SDSS-V is carrying out a dedicated survey for white dwarfs, single and in binaries, and we report the analysis of the spectroscopy of 504 cataclysmic variables (CVs) and CV candida…
The frequency of metal-enrichment of cool helium-atmosphere white dwarfs using the DESI Early Data Release
Christopher J. Manser, Boris T. Gänsicke, Paula Izquierdo +35
There is overwhelming evidence that white dwarfs host planetary systems; revealed by the presence, disruption, and accretion of planetary bodies. A lower limit on the frequency of…