66 citations · 119 across the 4 of their papers we have counts for
4 papers
An Extreme-AO Search for Giant Planets around a White Dwarf --VLT/SPHERE performance on a faint target GD 50
S. Xu, S. Ertel, Z. Wahhaj +3
CONTEXT. Little is known about the planetary systems around single white dwarfs although there is strong evidence that they do exist. AIMS. We performed a pilot study with the extr…
The bulk composition of exo-planets
Boris Gaensicke, John Debes, Patrick Dufour +7
Priorities in exo-planet research are rapidly moving from finding planets to characterizing their physical properties. Of key importance is their chemical composition, which feeds…
The Drop during Less than 300 days of a Dusty White Dwarf's Infrared Luminosity
S. Xu, M. Jura
We report Spitzer/IRAC photometry of WD J0959-0200, a white dwarf that displays excess infrared radiation from a disk, likely produced by a tidally disrupted planetesimal. We find…
A Pilot Search for Evidence of Extrasolar Earth-analog Plate Tectonics
M. Jura, B. Klein, S. Xu +1
Relative to calcium, both strontium and barium are markedly enriched in Earth's continental crust compared to the basaltic crusts of other differentiated rocky bodies within the so…