Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Gravitational waves emitted by solar-type stars excited by orbiting
  planets   The possibility of exciting the g-modes of a solar-type star as a consequence
of the gravitational interaction with a close companion (a planet or a brown
dwarf) is studied by a perturbative approach. The amplitude of the emitted
gravitational wave is computed and compared with the quadrupole emission of the
system, showing that in some cases it can be considerably larger. The effects
of radiation reaction are considered to evaluate the timescale of the emission
process, and a Roche lobe analysis is used to establish the region where the
companion can orbit without being disrupted by tidal interactions with the
star.

10
The categories of this paper are: q-bio
16
The categories of this paper are: stat
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
3
The categories of this paper are: physics
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
24
The categories of this paper are: dg-ga
30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
37
The categories of this paper are: supr-con
1
The categories of this paper are: cs
13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
17
The categories of this paper are: q-fin