The distribution of the dark matter in galaxies as the imprint of its Nature - Astrophysics > Cosmology and Nongalactic AstrophysicsReportar como inadecuado




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Abstract: The standard framework within which cosmological measurements are confrontedand interpreted nowadays, called Lambda Cold Dark Matter, presents a Universedominated by unknown forms of energy and matter.My Thesis is devoted to investigate the distribution of dark matter ingalaxies and addresses the fact that the local universe-the small objects thatorbit galaxies and the galaxy cores-turns out to be a marvelous laboratory forexamining the nature of dark matter and the fundamental physics involved instructure formation and evolution.I develop tests, based on mass modeling of rotation curves, for thevalidation of dark matter models on galactic scales. These tests have beenapplied in analyzing the phenomenology of the cusp vs core controversy, and thephenomenon of non-Keplerian rotation curves as modification of the laws ofgravity. I further investigate the properties and scaling laws of dark matterhalos.My conclusion is that galactic observations provide strong imprints on thenature of dark matter.



Autor: Christiane Frigerio Martins

Fuente: https://arxiv.org/







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