441 citations · 1.4k across the 19 of their papers we have counts for
17 papers · 1 filter
Correlations of Cosmic Tidal Fields
Paolo Catelan, Cristiano Porciani
We study correlations amongst tidal fields originated by the large-scale distribution of matter in the Universe. The two-point tidal correlation is described as a rank-4 tensor, wh…
Two Ways of Biasing Galaxy Formation
Paolo Catelan, Cristiano Porciani, Marc Kamionkowski
We calculate the galaxy bispectrum in both real and redshift space adopting the most common prescriptions for local Eulerian biasing and Lagrangian evolving-bias model. We show tha…
Intrinsic and Extrinsic Galaxy Alignment
Paolo Catelan, Marc Kamionkowski, Roger D. Blandford
We show with analytic models that the assumption of uncorrelated intrinsic ellipticities of target sources that is usually made in searches for weak gravitational lensing due to la…
How the dark matter halos cluster in Lagrangian space
Cristiano Porciani, Paolo Catelan, Cedric Lacey
We investigate the clustering of dark matter halos in Lagrangian space in terms of their two-point correlation function, spanning more than 4 orders of magnitudes of halo masses. A…
On the spatial distribution of dark matter halos
Paolo Catelan, Sabino Matarrese, Cristiano Porciani
We study the spatial distribution of dark matter halos in the Universe in terms of their number density contrast, related to the underlying dark matter fluctuation via a non-local…
Excursion set approach to the clustering of dark matter haloes in Lagrangian space
Cristiano Porciani, Sabino Matarrese, Francesco Lucchin +1
We present a stochastic approach to the spatial clustering of dark matter haloes in Lagrangian space. Our formalism is based on a local formulation of the `excursion set' approach…