Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Perturbation of Compact Planetary Systems by Distant Giant Planets   We examine the effect of secular perturbations by giant planets on systems of
multiple, lower mass planets orbiting Sun-like stars. We simulate the effects
of forcing both eccentricity and inclination, separately and together. We
compare our results to the statistics of the observed Kepler data and examine
whether these results can be used to explain the observed excess of single
transiting planets. We cannot explain the observed excess by pumping only
inclination without driving most systems over the edge of dynamical
instability. Thus, we expect the underlying planetary population for systems
with a single transitting planet to contain an intrinsically low multiplicity
population. We can explain the Kepler statistics and occurrence rates for R< 2
Rearth planets with a perturber population consistent with that inferred from
radial velocity surveys, but require too many giant planets if we wish to
explain all planets with R < 4 Rearth. These numbers can be brought into
agreement if we posit the existence of an equivalent size population of planets
below the RV detection limit (of characteristic mass 0.1 Mjupiter). This
population would need to be dynamically hot to produce sufficiently strong
perturbations and would leave the imprint of high obliquities amongst the
surviving planets. Thus, an extensive sample of obliquities for low mass
planets can help to indicate the presence of such a population. (...) Some of
our simulations also produce planetary systems with planets that survive in the
habitable zone but have no planets interior to them -- much as in the case of
our Solar System. This suggests that such a configuration may not be altogether
rare, but may occur around a few percent of FGK stars.

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The categories of this paper are: cmp-lg
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The categories of this paper are: physics
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The categories of this paper are: funct-an
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The categories of this paper are: q-bio
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The categories of this paper are: ao-sci
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The categories of this paper are: nucl-ex
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The categories of this paper are: math
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The categories of this paper are: chem-ph
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The categories of this paper are: cond-mat
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The categories of this paper are: hep-lat
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The categories of this paper are: gr-qc
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The categories of this paper are: math-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: solv-int
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The categories of this paper are: hep-ph
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The categories of this paper are: nucl-th