Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Jeans smoothing of the Ly$\alpha$ forest absorption lines   We investigate a contribution of the Jeans smoothing to the minimal width of
Ly$\alpha$ forest lines and discuss how the accounting for this additional
broadening affects the inferred parameters of the intergalactic matter equation
of state. We estimate a power-law index $\gamma$ of the equation of state, a
temperature at the mean density $T_0$ and a hydrogen photoionization rate
$\Gamma$ within 4 redshift bins. Furthermore, in each bin we obtain an upper
limit on the scale-parameter $f_{\rm J}$, which sets the relation between the
Jeans length and the characteristic physical size of the absorber clouds.

25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
3
The categories of this paper are: physics
16
The categories of this paper are: stat
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
4
The categories of this paper are: cond-mat
36
The categories of this paper are: cmp-lg
1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
29
The categories of this paper are: funct-an