183 citations · 407 across the 4 of their papers we have counts for
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white dwarfs within 40 pc III: spectroscopic observations of new candidates in the southern hemisphere
Mairi W. O'Brien, P. -E. Tremblay, N. P. Gentile Fusillo +31
We present a spectroscopic survey of 248 white dwarf candidates within 40 pc of the Sun; of these 244 are in the southern hemisphere. Observations were performed mostly with the Ve…
Discovery of Beryllium in White Dwarfs Polluted by Planetesimal Accretion
Beth Klein, Alexandra E. Doyle, B. Zuckerman +5
The element beryllium is detected for the first time in white dwarf stars. This discovery in the spectra of two helium-atmosphere white dwarfs was made possible only because of the…
Serendipitous Discovery of Nine White Dwarfs With Gaseous Debris Disks
Carl Melis, B. Klein, A. E. Doyle +3
Optical spectroscopic observations of white dwarf stars selected from catalogs based on the Gaia DR2 database reveal nine new gaseous debris disks that orbit single white dwarf sta…