Journal
ASTRONOMY REPORTS
Volume 53, Issue 11, Pages 976-987Publisher
PLEIADES PUBLISHING INC
DOI: 10.1134/S106377290911002X
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Funding
- Russian Foundation for Basic Research [08-0200159, 07-02-00886]
- Program of State Support for Leading Scientific Schools of the Russian Federation [NSh-626.2008.2, NSh2469.2008.2]
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The properties of gravitationally bound clouds (halos) of dark matter derived via numerical simulations of the distribution of dark matter in the Universe are investigated. The analysis makes use of a catalog of halos obtained in the European MareNostrum Universe project, which has achieved a better balance between resolution and representativeness than catalogs used earlier for similar studies. This has made it possible to refine the main tendencies displayed by the evolution of the halo masses and the angular velocities and density profiles of the halos. The results are compared with the newest available observational data and with known results obtained earlier in numerical simulations with lower resolution and using smaller samples of halos, making it possible to trace the influence of these factors on the results obtained. Disagreements between observations and numerical models obtained in earlier studies are confirmed, and possible ways to explain them discussed.
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