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The WEAVE-TwiLight-Survey: Expanding WEAVE's Reach to Bright and Low-Surface-Density Targets with a Novel Observing Mode
Thomas Hajnik, Nicholas A. Walton, Giuseppe D'Ago +28
Current-day multi-object spectroscopic surveys are often limited in their ability to observe bright stars due to their low surface densities, resulting in increased observational o…
Re-evaluating Lyman wing opacities and the low mass-problem in cool white dwarfs
Snehalata Sahu, Pier-Emmanuel Tremblay, Detlev Koester +4
Gaia observations have reignited interest in the optical and ultraviolet (UV) opacity problems of cool white dwarfs ( K), which were thought to be resolved n…
Circumstellar interaction in the extreme white dwarf merger remnant ZTF\,J1901+1458: A new class of white dwarf merger remnants with X-ray emission
Aayush Desai, Ilaria Caiazzo, Stephane Vennes +31
Double degenerate white dwarf (WD) mergers can exhibit extreme magnetic fields exceeding G and rapid rotation, but their spectral-energy distributions and high-energy emis…
Activity in White Dwarf Debris Disks I: Spitzer Legacy Reveals Variability Incompatible with the Canonical Model
Hiba Tu Noor, Jay Farihi, Scott J. Kenyon +11
This study presents all available, multi-epoch 3.6 and 4.5 m photometry from Spitzer Space Telescope observations of white dwarf debris disks, including weekly cadence observati…
A targeted search for binary white dwarf pulsars using Gaia and WISE
Ingrid Pelisoli, T. R. Marsh, G. Tovmassian +24
After its discovery in 2016, the white dwarf binary AR Scorpii (AR Sco) remained for several years the only white dwarf system to show pulsed radio emission associated with a fast-…
ASASSN-14dx: A cataclysmic variable harbouring a massive pulsating white dwarf
Pasi Hakala, Ingrid Pelisoli, Boris T. Gaensicke +5
We present the results of our study of ASASSN-14dx, a previously known but poorly characterised cataclysmic variable (CV). The source was observed as part of an ongoing high-time-r…