Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: WASP-167b/KELT-13b: Joint discovery of a hot Jupiter transiting a
  rapidly-rotating F1V star   We report the joint WASP/KELT discovery of WASP-167b/KELT-13b, a transiting
hot Jupiter with a 2.02-d orbit around a $V$ = 10.5, F1V star with [Fe/H] = 0.1
$\pm$ 0.1. The 1.5 R$_{\rm Jup}$ planet was confirmed by Doppler tomography of
the stellar line profiles during transit. We place a limit of $<$ 8 M$_{\rm
Jup}$ on its mass. The planet is in a retrograde orbit with a sky-projected
spin-orbit angle of $\lambda = -165^{\circ} \pm 5^{\circ}$. This is in
agreement with the known tendency for orbits around hotter stars to be more
likely to be misaligned. WASP-167/KELT-13 is one of the few systems where the
stellar rotation period is less than the planetary orbital period. We find
evidence of non-radial stellar pulsations in the host star, making it a
$\delta$-Scuti or $\gamma$-Dor variable. The similarity to WASP-33, a
previously known hot-Jupiter host with pulsations, adds to the suggestion that
close-in planets might be able to excite stellar pulsations.

25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
23
The categories of this paper are: solv-int
27
The categories of this paper are: comp-gas
9
The categories of this paper are: nlin
12
The categories of this paper are: nucl-th
3
The categories of this paper are: physics
7
The categories of this paper are: hep-th
32
The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
29
The categories of this paper are: funct-an
26
The categories of this paper are: bayes-an
11
The categories of this paper are: hep-lat
4
The categories of this paper are: cond-mat
1
The categories of this paper are: cs
13
The categories of this paper are: quant-ph