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7 papers · 2 filters
Kicked neutron stars and microlensing
Silvia Mollerach, Esteban Roulet
Due to the large kick velocities with which neutron stars are born in supernovae explosions, their spatial distribution is more extended than that of their progenitor stars. The la…
Learning from observations of the microwave background at small angular scales
D. Sáez, J. V. Arnau
In this paper, we focus our attention on the following question: How well can we recover the power spectrum of the cosmic microwave background from the maps of a given experiment?.…
Small Angular Scale Simulations of the Microwave Sky
D. Sáez, E. Holtmann, G. F. Smoot
We describe and compare two types of microwave sky simulations which are good for small angular scales. The first type uses expansions in spherical harmonics, and the second one is…
A multidimensional hydrodynamic code for structure evolution in cosmology
Vicent Quilis, Jose Ma. Ibanez, Diego Saez
A cosmological multidimensional hydrodynamic code is described and tested. This code is based on modern high-resolution shock-capturing techniques. It can make use of a linear or a…
Measures of the galaxy clustering
Vicent J. Martinez
A brief introduction is given to some aspects of the statistical description of the luminous matter distribution. I review the features of the redshift surveys that arise in the st…
Multiscaling
Vicent J. Martinez, Maria Jesus Pons-Borderia
We introduce the unbiased way statisticians look at the 2--point correlation function and study its relation to multifractal analysis. We apply this method to a simulation of the d…