Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Application of Regge-theory to astronomical objects   Using the model based on the Regge-like laws, new analytical formulas are
obtained for the moment of inertia, the rotation frequency, and the radius of
astronomical non-exotic objects (planets, stars, galaxies, and clusters of
galaxies). The rotation frequency and moment of inertia of neutron star and the
observable Universe are estimated. The estimates of the average numbers of
stars and galaxies in the observable Universe are given. The Darwin instability
effect in the binary systems (di-planets, di-stars, and di-galaxies) is also
analyzed.

31
The categories of this paper are: ao-sci
1
The categories of this paper are: cs
14
The categories of this paper are: math-ph
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
29
The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga
30
The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
4
The categories of this paper are: cond-mat
12
The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg
19
The categories of this paper are: eess
13
The categories of this paper are: quant-ph