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Gabrielli, L. Pietronero, B. Marcos Rome M. Joyce, Y. Baryshev, N.
CDM : -never detected on Earth -needed to make structures compatible with anisotropies Dark Energy -never detected on Earth -needed to explain SN data -troubles with the contribution of quantum vacuum energy… What do we know about dark matter? Fundamental and observational constraints.
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Origin the linear amplification? This is the only peculiar distinctive feature of HZ models in matter distribution. Phys Rep, , 66 Joyce M. J , L1 Hogg et al. Statistical and dynamical effects of Discretization What Nbody really are. Growth of correlation in the gravitational problem III. Formation of first structures from discrete fluctuations 2. Propagation of correlation from small to large scales Growth of correlation in the gravitational problem IV. The clustering is rescaled to larger and larger distances whose limit is determined by the time available for structure to form W.
Bias : is due to a finite size effect and not to selection different mechanism in simulations and galaxies Structures in N-Body simulations: too small and maybe different in nature from galaxy structures Discrete gravitational clustering: results of N-body must be taken with great care when interpreted as evolution of DM fluid Discrete fluctuations play a central role for non-linear structures Universality and independence on IC Perturbative theory for the treatment of discrete systems.
Study of galaxy distribution in the SDSS survey -- Homogeneity scale -- Clustering of galaxies of different luminosity Formation of non linear structures -- Study of modified potentials cut-off, softnening -- Non linear study of perturbed lattices -- Coarse grain approach for the formation of structures -- Statisical characterization of structures Tsallis, Saslaw… Study of CMBR density fields -- Real space analysis -- Test for angular isotrotpy.
Gabrielli, B. Jancovici, M. Joyce, J. Lebowitz, L. Pietronero and F. Sylos Labini Generation of primordial cosmological perturbations from statistical mechanicalmodels, Phys. D67, T.
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Baertschiger, M. Joyce and F.
Sylos Labini Power law and discreteness in cosmological N-body simulations, Astrophys. Lett , L63 F. Sylos Labini, T. Baertschiger and M. Joyce Universality of power-law correlation in the gravitational clustering, Europhys. Baertschiger and F. Sylos Labini On the problem of initial conditions in cosmological N-body simulations Europhs.
Please, try again. If the error persists, contact the administrator by writing to support infona. You can change the active elements on the page buttons and links by pressing a combination of keys:. I accept. Polski English Login or register account. Statistical physics for cosmic structures. Sylos Labini , L. Abstract The recent observations of galaxy and dark matter clumpy distributions have provided new elements to the understanding of the problem of cosmological structure formation. Authors Close. Assign yourself or invite other person as author. It allow to create list of users contirbution.
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