Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On self-gravitating strange dark matter halos around galaxies   A new family of nonrelativistic, Newtonian, non-quantum equilibrium
configurations describing galactic halos is introduced, by considering strange
quark matter conglomerates with masses larger than about 8 GeV as new possible
components of the dark matter. Originally introduced to explain the state of
matter in neutron stars, such conglomerates may also form in the high-density
and temperature conditions of the primordial Universe and then decouple from
ordinary baryonic matter, providing the fundamental components of dark matter
for the formation of pristine gravitational potential wells and the subsequent
evolution of cosmic structures. The obtained results for halo mass and radius
are consistent with the rotational velocity curve observed in the Galaxy.
Additionally, the average density of such dark matter halos is similar to that
derived for halos of dwarf spheroidal galaxies, which can therefore be
interpreted as downscaled versions of larger dark matter distributions around
Milky Way-sized galaxies and hint for a common origin of the two families of
cosmic structures.

9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
22
The categories of this paper are: chao-dyn
4
The categories of this paper are: cond-mat
33
The categories of this paper are: plasm-ph
20
The categories of this paper are: acc-phys
1
The categories of this paper are: cs
8
The categories of this paper are: hep-ex
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
32
The categories of this paper are: atom-ph