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Lattice Melting and Rotation in Perpetually Pulsating Equilibria
C. Pichon, D. Lynden-Bell, J. Pichon +1
Systems whose potential energies consists of pieces that scale as r^-2 together with pieces that scale as r^2, show no violent relaxation to Virial equilibrium but may pulsate at c…
Transverse and longitudinal correlation functions in the Intergalactic Medium from 32 close pairs of high-redshift quasars
F. Coppolani, P. Petitjean, F. Stoehr +6
We present the transverse flux correlation function of the Lyman-alpha forest in quasar absorption spectra at z~2.1 from VLT-FORS and VLT-UVES observations of a total of 32 pairs o…
The 3D skeleton of the SDSS
Thierry Sousbie, Christophe Pichon, Hélène Courtois +2
The length of the three-dimensional filaments observed in the fourth public data-release of the SDSS is measured using the {\em local skeleton} method. It consists in defining the…