Add to ORKGWe present new spectroscopic observations of the polluted, dusty, helium-dominated atmosphere white dwarf star HE1349-2305. Optical spectroscopy reveals weak Ca II infrared triplet emission indicating that metallic gas debris orbits and is accreted by the white dwarf. Atmospheric abundances are measured for magnesium and silicon while upper limits for iron and oxygen are derived from the available optical spectroscopy. HE1349-2305 is the first gas disk-hosting white dwarf star identified among previously known polluted white dwarfs. Further characterization of the parent body polluting this star will require ultraviolet spectroscopy
We present the discovery of strongly variable emission lines from a gaseous disc around the DA white...
We report Spitzer Space Telescope photometry of 11 externally polluted white dwarfs. Of the nine sta...
WD 0145+234 is a white dwarf that is accreting metals from a circumstellar disc of planetary materia...
We present new spectroscopic observations of the polluted, dusty, helium-dominated atmosphere white ...
We present optical and infrared characterization of the polluted DAZ white dwarf GALEXJ193156.8+0117...
We report the discovery of a subtle infrared excess associated with the young white dwarf EC 05365–4...
Spectroscopic observations of white dwarfs reveal that many of them are polluted by exoplanetary mat...
We present Infrared Spectrometer And Array Camera (ISAAC) spectroscopy and ISAAC, UKIDSS, and Spitze...
Debris discs which orbit white dwarfs are signatures of remnant planetary systems. We present 12 yr ...
Debris discs which orbit white dwarfs are signatures of remnant planetary systems. We present 12 yr ...
As many as 50% of otherwise pristine white dwarf H or He photospheres show evidence of metal contami...
We present Hubble Space Telescope (HST) ultraviolet spectroscopy of the white dwarfs PG0843+516, PG1...
A total of 1–3 per cent of white dwarfs are orbited by planetary dusty debris detectable as infrared...
The Teff = 20 800 K white dwarf WD 1536+520 is shown to have broadly solar abundances of the major r...
Using newly obtained high-resolution data (R similar to 1 x 10(5)) from the Hubble Space Telescope, ...
We present the discovery of strongly variable emission lines from a gaseous disc around the DA white...
We report Spitzer Space Telescope photometry of 11 externally polluted white dwarfs. Of the nine sta...
WD 0145+234 is a white dwarf that is accreting metals from a circumstellar disc of planetary materia...
We present new spectroscopic observations of the polluted, dusty, helium-dominated atmosphere white ...
We present optical and infrared characterization of the polluted DAZ white dwarf GALEXJ193156.8+0117...
We report the discovery of a subtle infrared excess associated with the young white dwarf EC 05365–4...
Spectroscopic observations of white dwarfs reveal that many of them are polluted by exoplanetary mat...
We present Infrared Spectrometer And Array Camera (ISAAC) spectroscopy and ISAAC, UKIDSS, and Spitze...
Debris discs which orbit white dwarfs are signatures of remnant planetary systems. We present 12 yr ...
Debris discs which orbit white dwarfs are signatures of remnant planetary systems. We present 12 yr ...
As many as 50% of otherwise pristine white dwarf H or He photospheres show evidence of metal contami...
We present Hubble Space Telescope (HST) ultraviolet spectroscopy of the white dwarfs PG0843+516, PG1...
A total of 1–3 per cent of white dwarfs are orbited by planetary dusty debris detectable as infrared...
The Teff = 20 800 K white dwarf WD 1536+520 is shown to have broadly solar abundances of the major r...
Using newly obtained high-resolution data (R similar to 1 x 10(5)) from the Hubble Space Telescope, ...
We present the discovery of strongly variable emission lines from a gaseous disc around the DA white...
We report Spitzer Space Telescope photometry of 11 externally polluted white dwarfs. Of the nine sta...
WD 0145+234 is a white dwarf that is accreting metals from a circumstellar disc of planetary materia...