caa a22 4500 467887306 CHVBK 20180406152738.0 cr unu---uuuuu 170328e20060301xx s 000 0 eng 10.1007/s10714-006-0233-1 doi (NATIONALLICENCE)springer-10.1007/s10714-006-0233-1 Anisotropic hubble expansion of large scale structures [Elektronische Daten] [H. Fliche, J. Souriau, R. Triay] With the aim of understanding the cosmic velocity fields at large scale, we investigate the dynamics of a pressureless distribution of gravitational sources moving under an anisotropic generalization of Hubble expansion and according to Euler-Poisson equations system. As a result, it turns out that such a behavior requires the distribution to be homogenous, similarly to Hubble law. Among several solutions, we show a planar kinematics which admits a constant (eternal) and rotational distortion, where the velocity field is not potential. Within this class, the one with no rotational distortion identifies to a bulk flow. To apply this model within cosmic structures as the Local Super Cluster, the solutions are interpreted as approximations providing us with an hint on the behavior of the cosmic flow just after decoupling era up to present date. Such a result suggests that the observed bulk flow may not be due exclusively to tidal forces but has a primordial origin. Springer-Verlag, 2006 Anisotropic Hubble law nationallicence Bulk flow nationallicence Cosmic velocities fields nationallicence Fliche H. LMMT, Fac. des Sciences et Techniques de St Jérôme, av. Normandie-Niemen, 13397, Marseille Cedex 20, France aut Souriau J. Centre de Physique Théorique, (UPRES EA 2596. Unité Mixte de Recherche (UMR 6207) du CNRS, et des universités Aix-Marseille I, Aix-Marseille II et du Sud Toulon-Var., Laboratoire affilié à la FRUMAM (FR 2291)), CNRS Luminy Case 907, 13288, Marseille Cedex 9, France aut Triay R. Centre de Physique Théorique, (UPRES EA 2596. Unité Mixte de Recherche (UMR 6207) du CNRS, et des universités Aix-Marseille I, Aix-Marseille II et du Sud Toulon-Var., Laboratoire affilié à la FRUMAM (FR 2291)), CNRS Luminy Case 907, 13288, Marseille Cedex 9, France aut General Relativity and Gravitation Springer US; http://www.springer-ny.com 38/3(2006-03-01), 463-474 0001-7701 38:3<463 2006 38 10714 https://doi.org/10.1007/s10714-006-0233-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10714-006-0233-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Fliche H. LMMT, Fac. des Sciences et Techniques de St Jérôme, av. Normandie-Niemen, 13397, Marseille Cedex 20, France aut NATIONALLICENCE 700 1- Souriau J. Centre de Physique Théorique, (UPRES EA 2596. Unité Mixte de Recherche (UMR 6207) du CNRS, et des universités Aix-Marseille I, Aix-Marseille II et du Sud Toulon-Var., Laboratoire affilié à la FRUMAM (FR 2291)), CNRS Luminy Case 907, 13288, Marseille Cedex 9, France aut NATIONALLICENCE 700 1- Triay R. Centre de Physique Théorique, (UPRES EA 2596. Unité Mixte de Recherche (UMR 6207) du CNRS, et des universités Aix-Marseille I, Aix-Marseille II et du Sud Toulon-Var., Laboratoire affilié à la FRUMAM (FR 2291)), CNRS Luminy Case 907, 13288, Marseille Cedex 9, France aut NATIONALLICENCE 773 0- General Relativity and Gravitation Springer US; http://www.springer-ny.com 38/3(2006-03-01), 463-474 0001-7701 38:3<463 2006 38 10714 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer