Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Velocity moments of dark matter haloes   Using cosmological N-body simulations we study the line-of-sight velocity
distribution of dark matter haloes focusing on the lowest-order even moments,
dispersion and kurtosis, and their application to estimate the mass profiles of
cosmological structures. For each of the ten massive haloes selected from the
simulation box we determine the virial mass, concentration and the anisotropy
parameter. In order to emulate observations from each halo we choose randomly
300 particles and project their velocities and positions along the line of
sight and on the surface of the sky, respectively. After removing interlopers
we calculate the profiles of the line-of-sight velocity moments and fit them
with the solutions of the Jeans equations. The estimates of virial mass,
concentration parameter and velocity anisotropy obtained in this way are in
good agreement with the values found from the full 3D analysis.

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The categories of this paper are: hep-th
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The categories of this paper are: solv-int
13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom
25
The categories of this paper are: patt-sol
36
The categories of this paper are: cmp-lg
24
The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
1
The categories of this paper are: cs
16
The categories of this paper are: stat
29
The categories of this paper are: funct-an
17
The categories of this paper are: q-fin
30
The categories of this paper are: q-alg