Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Constraining Dissipative Dark Matter Self-Interactions   We study the gravothermal evolution of dark matter halos in the presence of
dissipative dark matter self-interactions. Dissipative interactions are present
in many particle-physics realizations of the dark-sector paradigm and can
significantly accelerate the gravothermal collapse of halos compared to purely
elastic dark matter self-interactions. This is the case even when the
dissipative interaction timescale is longer than the free-fall time of the
halo. Using a semianalytical fluid model calibrated with isolated and
cosmological $N$-body simulations, we calculate the evolution of the halo
properties -- including its density profile and velocity dispersion profile --
as well as the core-collapse time as a function of the particle model
parameters that describe the interactions. A key property is that the inner
density profile at late times becomes cuspy again. Using 18 dwarf galaxies that
exhibit a corelike dark matter density profile, we derive constraints on the
strength of the dissipative interactions and the energy loss per collision.

33
The categories of this paper are: plasm-ph
27
The categories of this paper are: comp-gas
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The categories of this paper are: cmp-lg
12
The categories of this paper are: nucl-th
2
The categories of this paper are: math
15
The categories of this paper are: nucl-ex
3
The categories of this paper are: physics
30
The categories of this paper are: q-alg
28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
16
The categories of this paper are: stat
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
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The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
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The categories of this paper are: funct-an