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tom broadhurst , evan scannapieco and patrick petitjean bring both theory and observation to the study of intergalactic space .

PATRICK PETITJEAN, EVAN SCANNAPIECO and TOM BROADHURST bring both theory and observation to the study of intergalactic space .

evan scannapieco , patrick petit jean and tom broadhurst bring both theory and observation to the study of intergalactic space .

Petitjean and Scannapieco are working together on the clustering of heavy elements observed in quasar spectra .