Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dynamical friction in the primordial neutrino sea   Standard big bang cosmology predicts a cosmic neutrino background at $T_\nu
\simeq 1.95~$K. Given the current neutrino oscillation measurements, we know
most neutrinos move at large, but non-relativistic, velocities. Therefore, dark
matter haloes moving in the sea of primordial neutrinos form a neutrino wake
behind them, which would slow them down, due to the effect of {\it dynamical
friction}. In this paper, we quantify this effect for realistic haloes, in the
context of the halo model of structure formation, and show that it scales as
$m_\nu^4$ $\times$ relative velocity, and monotonically grows with the halo
mass. Galaxy redshift surveys can be sensitive to this effect (at $>3\sigma$
confidence level, depending on survey properties, neutrino mass and hierarchy)
through redshift space distortions (RSD) of distinct galaxy populations.

14
The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc
19
The categories of this paper are: eess
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
4
The categories of this paper are: cond-mat
34
The categories of this paper are: chem-ph
18
The categories of this paper are: econ
12
The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
17
The categories of this paper are: q-fin