Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: What asteroseismology can do for exoplanets: Kepler-410A b is a Small
  Neptune around a bright star, in an eccentric orbit consistent with low
  obliquity   We confirm the Kepler planet candidate Kepler-410b (KOI-42b) as a Neptune
sized exoplanet on a 17.8 day, eccentric orbit around the bright (Kp = 9.4)
star Kepler-410A. This is the third brightest confirmed planet host star in the
Kepler field and one of the brightest hosts of all currently known transiting
exoplanets. Kepler-410 consists of a blend between the fast rotating planet
host star (Kepler-410A) and a fainter star (Kepler-410B), which has complicated
the confirmation of the planetary candidate. Employing asteroseismology, using
constraints from the transit light curve, adaptive optics and speckle images,
and Spitzer transit observations, we demonstrate that the candidate can only be
an exoplanet orbiting Kepler-410A. Via asteroseismology we determine the
following stellar and planetary parameters with high precision; M$_\star =
1.214 \pm 0.033$ M$_\odot$, R$_\star = 1.352 \pm 0.010$ R$_\odot$, Age = $2.76
\pm 0.54$ Gyr, planetary radius ($2.838 \pm 0.054$ R$_\oplus$), and orbital
eccentricity ($0.17^{+0.07}_{-0.06}$). In addition, rotational splitting of the
pulsation modes allows for a measurement of Kepler-410A's inclination and
rotation rate. Our measurement of an inclination of $82.5^{+7.5}_{-2.5}$
[$^\circ$] indicates a low obliquity in this system. Transit timing variations
indicate the presence of at least one additional (non-transiting) planet in the
system.

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The categories of this paper are: q-alg
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The categories of this paper are: ao-sci
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The categories of this paper are: q-fin
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The categories of this paper are: plasm-ph
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The categories of this paper are: cs
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The categories of this paper are: hep-th
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The categories of this paper are: chem-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: econ
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The categories of this paper are: math
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The categories of this paper are: atom-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: quant-ph
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The categories of this paper are: acc-phys