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4 papers · 1 filter
First Principles Calculations of Shock Compressed Fluid Helium
B. Militzer
The properties of hot dense helium at megabar pressures were studied with two first-principles computer simulation techniques, path integral Monte Carlo and density functional mole…
Hydrogen-Helium Mixtures in the Interiors of Giant Planets
Jan Vorberger, I. Tamblyn, B. Militzer +1
Equilibrium properties of hydrogen-helium mixtures under conditions similar to the interior of giant gas planets are studied by means of first principle density functional molecula…
Unbinned maximum-likelihood estimators for low-count data: Applications to faint X-ray spectra in the Taurus Molecular Cloud
Kaspar Arzner, Manuel Güdel, Kevin Briggs +5
Traditional binned statistics such as suffer from information loss and arbitrariness of the binning procedure. We point out that the underlying statistical quantity (the log…
Theoretical determination of the Raman spectra of MgSiO3 perovskite and post-perovskite at high pressure
Razvan Caracas, Ronald E. Cohen
We use the density functional perturbation theory to determine for the first time the pressure evolution of the Raman intensities for a mineral, the two high-pressure structures of…