771 citations · 3.2k across the 36 of their papers we have counts for
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astro-ph.EP2014★ 43 cited
Evidence for an Anhydrous Carbonaceous Extrasolar Minor Planet
M. Jura, P. Dufour, S. Xu +4
Using Keck/HIRES, we report abundances of 11 different elements heavier than helium in the spectrum of Ton 345, a white dwarf that has accreted one of its own minor planets. This p…
astro-ph.EP2014★ 30 cited
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…
astro-ph.EP2014★ 162 cited
Elemental Compositions of Two Extrasolar Rocky Planetesimals
S. Xu, M. Jura, D. Koester +2
We report Keck/HIRES and HST/COS spectroscopic studies of extrasolar rocky planetesimals accreted onto two hydrogen atmosphere white dwarfs, G29-38 and GD 133. In G29-38, 8 element…