Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Kepler-432 b: a massive planet in a highly eccentric orbit transiting a
  red giant   We report the first disclosure of the planetary nature of Kepler-432 b (aka
Kepler object of interest KOI-1299.01). We accurately constrained its mass and
eccentricity by high-precision radial velocity measurements obtained with the
CAFE spectrograph at the CAHA 2.2-m telescope. By simultaneously fitting these
new data and Kepler photometry, we found that Kepler-432 b is a dense
transiting exoplanet with a mass of Mp = 4.87 +/- 0.48 MJup and radius of Rp =
1.120 +/- 0.036 RJup. The planet revolves every 52.5 d around a K giant star
that ascends the red giant branch, and it moves on a highly eccentric orbit
with e = 0.535 +/- 0.030. By analysing two NIR high-resolution images, we found
that a star is located at 1.1 from Kepler-432, but it is too faint to cause
significant effects on the transit depth. Together with Kepler-56 and
Kepler-91, Kepler-432 occupies an almost-desert region of parameter space,
which is important for constraining the evolutionary processes of planetary
systems.

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The categories of this paper are: eess
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The categories of this paper are: math-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: supr-con
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The categories of this paper are: econ
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The categories of this paper are: nlin
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The categories of this paper are: q-bio
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The categories of this paper are: math
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The categories of this paper are: q-alg
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The categories of this paper are: hep-lat
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The categories of this paper are: funct-an
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The categories of this paper are: hep-th
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The categories of this paper are: comp-gas
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The categories of this paper are: alg-geom
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The categories of this paper are: hep-ex