349 citations · 942 across the 16 of their papers we have counts for
3 papers · 1 filter
Cosmological Perturbations at Second Order and Recombination Perturbed
Leonardo Senatore, Svetlin Tassev, Matias Zaldarriaga
We derive the full set of second-order equations governing the evolution of cosmological perturbations, including the effects of the first-order electron number density perturbatio…
Non-Gaussianities from Perturbing Recombination
Leonardo Senatore, Svetlin Tassev, Matias Zaldarriaga
We approximately compute the bispectrum induced on the CMB temperature by fluctuations in the standard recombination epoch. Of all the second order sources that can induce non-Gaus…
Kinematic Density Waves in Accretion Disks
Svetlin Tassev, Edmund Bertschinger
When thin accretion disks around black holes are perturbed, the main restoring force is gravity. If gas pressure, magnetic stresses, and radiation pressure are neglected, the disk…