Circumstellar disks of planetary debris are now known or suspected to closely orbit
hundreds of white dwarf stars. To date, both data and theory support disks that are entirely …

The fates of planetary systems provide unassailable insights into their formation and
represent rich cross-disciplinary dynamical laboratories. Mounting observations of post-main …

Context. The Gaia DR3 catalogue contains, for the first time, about 800 000 solutions with
either orbital elements or trend parameters for astrometric, spectroscopic, and eclipsing …

Context. Heavy metals in the atmospheres of white dwarfs are thought in many cases to be
accreted from a circumstellar debris disk, which was formed by the tidal disruption of a rocky …

We present a novel method to detect variable astrophysical objects and transient
phenomena using anomalous excess scatter in repeated measurements from public …

Evidence is now compelling that elements heavier than helium in many white dwarf
atmospheres have accumulated by accretion from orbiting rocky bodies, often larger than …

Abstract We present Hubble Space Telescope (HST) ultraviolet spectroscopy of the white
dwarfs PG 0843+ 516, PG 1015+ 161, SDSS 1228+ 1040, and GALEX 1931+ 0117, which …

In a previous study, we analysed the spectra of 230 cool (T eff< 9000 K) white dwarfs
exhibiting strong metal contamination, measuring abundances for Ca, Mg, Fe and in some …

50 per cent of all white dwarfs (WDs) host observable and dynamically active remnant
planetary systems based on the presence of close-in circumstellar dust and gas and …

We report the discovery of a white dwarf exhibiting deep, irregularly shaped transits,
indicative of circumstellar planetary debris. Using Zwicky Transient Facility DR2 photometry …