270 citations · 4.8k across the 154 of their papers we have counts for
7 papers · 1 filter
Weak Lensing Effects on the Galaxy Three-Point Correlation Function
Fabian Schmidt, Alberto Vallinotto, Emiliano Sefusatti +1
We study the corrections to the galaxy three-point correlation function (3PCF) induced by weak lensing magnification due to the matter distribution along the line of sight. We cons…
The Correlation Function of Optically Selected Galaxy Clusters in the Sloan Digital Sky Survey
Juan Estrada, Emiliano Sefusatti, Joshua A. Frieman
We measure the two-point spatial correlation function for clusters selected from the photometric MaxBCG galaxy cluster catalog for the Sloan Digital Sky Survey (SDSS). We evaluate…
The bispectrum of galaxies from high-redshift galaxy surveys: primordial non-Gaussianity and non-linear galaxy bias
Emiliano Sefusatti, Eiichiro Komatsu
The greatest challenge in the interpretation of galaxy clustering data from any surveys is galaxy bias. Using a simple Fisher matrix analysis, we show that the bispectrum provides…
Primordial non-Gaussianity and Dark Energy constraints from Cluster Surveys
Emiliano Sefusatti, Chris Vale, Kenji Kadota +1
Galaxy cluster surveys will be a powerful probe of dark energy. At the same time, cluster abundance is sensitive to any non-Gaussianity of the primordial density field. It is there…
Cosmology and the Bispectrum
Emiliano Sefusatti, Martin Crocce, Sebastian Pueblas +1
The present spatial distribution of galaxies in the Universe is non-Gaussian, with 40% skewness in 50 Mpc/h spheres, and remarkably little is known about the information encoded in…
Galaxy Bias and Halo-Occupation Numbers from Large-Scale Clustering
Emiliano Sefusatti, Roman Scoccimarro
We show that current surveys have at least as much signal to noise in higher-order statistics as in the power spectrum at weakly nonlinear scales. We discuss how one can use this i…