This article is cited in 5 papers

ASTROPHYSICS AND COSMOLOGY

Resolving infall caustics in dark matter halos

K. Dolag^ab, A. D. Dolgov^cde, I. I. Tkachev<sup>ef

a</sup> Max Planck Institute for Astrophysics
^b University Observatory Munich
^c University of Ferrara
^d Institute for Theoretical and Experimental Physics (Russian Federation State Scientific Center), Moscow
^e Novosibirsk State University
^f Institute for Nuclear Research, Russian Academy of Sciences, Moscow

Abstract: We have found that the phase-space of a dark matter particles assembling a galactic halo in cosmological $N$-body simulations has well defined fine grained structure. Recently accreted particles form distinctive velocity streams with high density contrast. For fixed observer position these streams lead to peaks in velocity distribution. Overall structure is close to that emerging in the secondary infall model.

Received: 24.10.2012

Language: English

 English version: Journal of Experimental and Theoretical Physics Letters, 2012, 96:12, 754–758

Bibliographic databases:

• 
• 
•