4 papers
The correlation of the Lyman-alpha forest and metals in close pairs of hight-redshift quasars
F. Coppolani, P. Petitjean, F. Stoehr +6
We derive the transverse flux correlation function in the Lyman-alpha forest at z~2.1 from VLT-FORS observations of a total of 32 pairs of quasars. The shape and correlation length…
3D Spatial Distribution of the Intergalactic Medium
Patrick Petitjean, Emmanuel Rollinde, Bastien Aracil +2
Very recently a new inversion method has been developped to analyze the intergalactic medium seen in absorption in quasar spectra (the so-called Lyman-alpha forest). This method is…
Fast Clustering Analysis of Inhomogeneous Megapixel CMB maps
I. Szapudi, S. Prunet, S. Colombi
Szapudi et al (2001) introduced the method of estimating angular power spectrum of the CMB sky via heuristically weighted correlation functions. Part of the new technique is that a…
The Cosmic Distribution of Clustering
S. Colombi, I. Szapudi, the VIRGO consortium
For a given statistic, A, the cosmic distribution function, Upsilon(VA), is the probability of measuring a value VA in a finite galaxy catalog. For statistics related to count-in-c…