274 citations · 787 across the 16 of their papers we have counts for
7 papers · 1 filter
The MIRI Excess around Degenerates (MEAD) Survey II: A Probable Planet detected via IR Excess around WD 0644+025
Sabrina Poulsen, John Debes, Ashley Messier +14
The MIRI Excess Around Degenerates (MEAD) Survey is a cycle 2 JWST program designed to image nearby white dwarfs with MIRI at 10 and 15 microns. This survey targeted 56 white dwarf…
The MIRI Excesses around Degenerates (MEAD) Survey I: A candidate cold brown dwarf in orbit around the nearby white dwarf 2MASS J09424023-4637176
Loïc Albert, Sabrina R. Poulsen, Érika Le Bourdais +17
The MIRI Excesses Around Degenerates Survey is a Cycle 2 James Webb Space Telescope (JWST) Survey program designed to image nearby white dwarfs in the mid-IR with the MIRI imaging…
A hot white dwarf merger remnant revealed by an ultraviolet detection of carbon
Snehalata Sahu, Antoine Bédard, Boris T. Gänsicke +7
Atmospheric carbon has been detected in the optical spectra of six hydrogen-rich ultra-massive white dwarfs, revealing large carbon abundances (log C/H > 0.5) attributable to th…
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…
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…
Evidence from K2 for rapid rotation in the descendant of an intermediate-mass star
J. J. Hermes, Steven D. Kawaler, A. D. Romero +9
Using patterns in the oscillation frequencies of a white dwarf observed by K2, we have measured the fastest rotation rate, 1.13(02) hr, of any isolated pulsating white dwarf known…
When flux standards go wild: white dwarfs in the age of Kepler
J. J. Hermes, B. T. Gaensicke, Nicola Pietro Gentile Fusillo +5
White dwarf stars have been used as flux standards for decades, thanks to their staid simplicity. We have empirically tested their photometric stability by analyzing the light curv…