Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Star-Planet Interactions in X-rays   We investigated the coronal activity of planet-hosting stars by means of
statistical analysis for a complete sample of stars in the solar neighborhood.
We find no observational evidence that Star-Planet Interactions are at work in
this sample, at least not at the sensitivity levels of our observations. We
additionally test the upsilon Andromedae system, an F8V star with a Hot Jupiter
and two other known planets, for signatures of Star-Planet Interactions in the
chromosphere, but only detect variability with the stellar rotation period.

20
The categories of this paper are: acc-phys
35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
5
The categories of this paper are: gr-qc
36
The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio
19
The categories of this paper are: eess
3
The categories of this paper are: physics
23
The categories of this paper are: solv-int
13
The categories of this paper are: quant-ph
8
The categories of this paper are: hep-ex
2
The categories of this paper are: math