Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Shaping the central structure in CDM halos   Coupling the dark matter (DM) and baryonic components in galaxies via
dynamical friction (by allowing the latter to be clumpy) leads to energy input
into the DM. The resulting expanding tendency in the DM component overcomes the
competing effect of adiabatic contraction, resulting from the shrinking gas
component, and leads to a nearly constant density core. The baryonic mass
inflow also leads to the coupling of the structure at the kpc scale and below
and that of the structure of the DM at the 10 kpc scale and above, with rate of
mass inflow being dependent on the initial halo central concentration. The
latter also determines the final halo core radius.

11
The categories of this paper are: hep-lat
14
The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
1
The categories of this paper are: cs
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
7
The categories of this paper are: hep-th
16
The categories of this paper are: stat
4
The categories of this paper are: cond-mat
28
The categories of this paper are: alg-geom
36
The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
19
The categories of this paper are: eess
8
The categories of this paper are: hep-ex