Jay Farihi

TL;DR: The first gas disk-hosting white dwarf star identified among previously known polluted white dwarfs is HE1349-2305 as discussed by the authors, which is a star with a weak Ca II infrared triplet emission indicating that metallic gas debris orbits and is accreted by the star.

TL;DR: In this paper, a re-evaluation of time-averaged accretion rates at DBZ-type white dwarfs points to historical, timeaveraged rates significantly higher than the currently observed episodes at their DAZ counterparts.

TL;DR: In this article, the presence of warm debris from a tidally destroyed rocky and possibly icy planetary body orbiting the white dwarf GD 61 was detected, and the nominal ratios of these elements indicate an excess of oxygen relative to that expected from rock-forming metal oxides and thus it is possible that water was accreted together with the terrestrial-like debris.

TL;DR: In this article, optical spectroscopy and near-infrared photometry of 126 cool white dwarfs (WDs) in the Sloan Digital Sky Survey (SDSS) is presented.

TL;DR: In this article, the presence of warm debris from a tidally destroyed rocky and possibly icy planetary body orbiting the white dwarf GD 61 was detected, and the nominal ratios of these elements indicate an excess of oxygen relative to that expected from rock-forming metal oxides and thus it is possible that water was accreted together with the terrestrial-like debris.