Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: WASP-34b: a near-grazing transiting sub-Jupiter-mass exoplanet in a
  hierarchical triple system   We report the discovery of WASP-34b, a sub-Jupiter-mass exoplanet transiting
its 10.4-magnitude solar-type host star (1SWASP J110135.89-235138.4; TYC
6636-540-1) every 4.3177 days in a slightly eccentric orbit (e = 0.038 +/-
0.012). We find a planetary mass of 0.59 +/- 0.01 M_Jup and radius of 1.22
^{+0.11}_{-0.08} R_Jup. There is a linear trend in the radial velocities of
55+/-4 m/s/y indicating the presence of a long-period third body in the system
with a mass > 0.45 M_Jup at a distance of >1.2 AU from the host star. This
third-body is either a low-mass star, white dwarf, or another planet. The
transit depth ((R_P/R_*)^2 = 0.0126) and high impact parameter (b = 0.90)
suggest that this could be the first known transiting exoplanet expected to
undergo grazing transits, but with a confidence of only ~80%.

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The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph
4
The categories of this paper are: cond-mat
34
The categories of this paper are: chem-ph
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The categories of this paper are: hep-th
8
The categories of this paper are: hep-ex
27
The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
3
The categories of this paper are: physics
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The categories of this paper are: q-fin
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The categories of this paper are: nucl-th
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The categories of this paper are: acc-phys
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The categories of this paper are: math
1
The categories of this paper are: cs