Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The multiplicity of exoplanet host stars - Spectroscopic confirmation of
  the companions GJ3021B and HD27442B, one new planet host triple-star system,
  and global statistics   We present new results from our ongoing multiplicity study of exoplanet host
stars and present a list of 29 confirmed planet host multiple-star systems.
Furthermore, we discuss the properties of these stellar systems and compare the
properties of exoplanets detected in these systems with those of planets
orbiting single stars.

10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
2
The categories of this paper are: math
20
The categories of this paper are: acc-phys
27
The categories of this paper are: comp-gas
36
The categories of this paper are: cmp-lg
26
The categories of this paper are: bayes-an
0
The categories of this paper are: hep-ph
8
The categories of this paper are: hep-ex
1
The categories of this paper are: cs
19
The categories of this paper are: eess
23
The categories of this paper are: solv-int
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph