Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Oscillations and convective motion in stars with URCA shells   It is shown that in presence of URCA shell pulsational energy losses due to
neutrino emission and nonequilibrium beta heating are much less than energy
losses by excitation of short-wavelength acoustic waves. Convective motion in
presence of URCA shell is considered, and equations generalizing the mean free
path model of convection are derived.

16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
4
The categories of this paper are: cond-mat
36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex
5
The categories of this paper are: gr-qc
8
The categories of this paper are: hep-ex
17
The categories of this paper are: q-fin
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
25
The categories of this paper are: patt-sol