Robustness of Discrete Flows and Caustics in Cold Dark Matter Cosmology

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dc.creatorNatarajan, Aravind
dc.creatorSikivie, Pierre
dc.date2005-08-01
dc.date.accessioned2026-07-07T11:57:14Z
dc.date.available2026-07-07T11:57:14Z
dc.descriptionAlthough a simple argument implies that the distribution of dark matter in galactic halos is characterized by discrete flows and caustics, their presence is often ignored in discussions of galactic dynamics and of dark matter detection strategies. Discrete flows and caustics can in fact be irrelevant if the number of flows is very large. We estimate the number of dark matter flows as a function of galactocentric distance and consider the various ways in which that number can be increased, in particular by the presence of structure on small scales (dark matter clumps) and the scattering of the flows by inhomogeneities in the matter distribution. We find that, when all complicating factors are taken into account, discrete flows and caustics in galactic halos remain a robust prediction of cold dark matter cosmology with extensive implications for observation and experiment.
dc.description13 pages, no figures
dc.identifierhttps://arxiv.org/abs/astro-ph/0508049
dc.identifierhttp://arxiv.org/abs/astro-ph/0508049
dc.identifierPhys.Rev.D72:083513,2005
dc.identifierdoi:10.1103/PhysRevD.72.083513
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/205810
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Experiment
dc.subjectHigh Energy Physics - Phenomenology
dc.titleRobustness of Discrete Flows and Caustics in Cold Dark Matter Cosmology
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