AT the BORDERS of the UNIVERSE !!! by claude19

Fractal • Science Fiction • posted on Jan 21, 2009

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Description

Apophysis 2.06 3DHAck with no postwork où le matière stellaire et le matière noire sont très proches l'une de l'autre... En astrophysique, la matière noire (ou matière sombre), traduction de l'anglais dark matter, désigne la matière apparemment indétectable, invoquée pour rendre compte d'effets inattendus, notamment au sujet des galaxies. Différentes hypothèses ont été émises et explorées sur la composition de cette hypothétique matière noire : gaz moléculaire, étoiles mortes, naines brunes en grand nombre, trous noirs, etc. Cependant, les observations (ou plutôt le manque d'observations directes) impliqueraient plutôt une nature non-baryonique, et donc encore inconnue, encore que l'on suppose fortement des super-partenaires tels que le neutralino. Ces particules exotiques sont regroupées sous le nom générique de WIMP, acronyme de l'anglais Weakly interacting massive particles. La matière noire représenterait pourtant une abondance cinq fois plus importante que la matière baryonique, pour constituer de 22 % à 27 % de la densité totale de l'Univers observable, selon les modèles de formation et d'évolution des galaxies, ainsi que les modèles cosmologiques. In astrophysics, black matter (or matter sinks), translation of the English dark matter, indicates the apparently undetectable matter, called upon to return account of unexpected effects, in particular about the galaxies. Various assumptions were put forth and explored on the composition of this hypothetical black matter: molecular gas, died, dwarf stars brown in great number, black holes, etc However, the observations (or rather the lack of direct observations) would rather imply a nature not-baryon, and thus still unknown, although one strongly supposes super-partners such as the neutralino. These exotic particles are gathered under the generic name of WIMP, acronym of the English Weakly interacting massive particles. The black matter would however represent an abundance five times more important than the baryon matter, to constitute from 22% to 27% of the total density of the Observable universe, according to the models of formation and evolution of the galaxies, as well as the cosmological models.