Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Properties of planets in binary systems. The role of binary separation   The statistical properties of planets in binaries were investigated. Any
difference to planets orbiting single stars can shed light on the formation and
evolution of planetary systems. As planets were found around components of
binaries with very different separation and mass ratio, it is particularly
important to study the characteristics of planets as a function of the
effective gravitational influence of the companion. A compilation of planets in
binary systems was made; a search for companions orbiting stars recently shown
to host planets was performed, resulting in the addition of two further binary
planet hosts (HD 20782 and HD 109749). The probable original properties of the
three binary planet hosts with white dwarfs companions were also investigated.
Using this updated sample of planets in binaries we performed a statistical
analysis of the distributions of planet mass, period, and eccentricity,
fraction of multiplanet systems, and stellar metallicity for planets orbiting
components of tight and wide binaries and single stars. The only highly
significant difference revealed by our analysis concerns the mass distribution
of short-period planets. Massive planets in short period orbits are found in
most cases around the components of rather tight binaries. The properties of
exoplanets orbiting the components of wide binaries are compatible with those
of planets orbiting single stars, except for a possible greater abundance of
high-eccentricity planets. The previously suggested lack of massive planets
with P>100 days in binaries is not confirmed. We conclude that the presence of
a stellar companion with separation smaller than 100-300 AU is able to modify
the formation and/or migration and/or the dynamical evolution history of giant
planets while wide companions play a more limited role

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The categories of this paper are: quant-ph
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The categories of this paper are: physics
37
The categories of this paper are: supr-con
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The categories of this paper are: hep-lat
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The categories of this paper are: hep-th
4
The categories of this paper are: cond-mat
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The categories of this paper are: cmp-lg
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The categories of this paper are: acc-phys
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The categories of this paper are: hep-ex
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The categories of this paper are: math-ph
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The categories of this paper are: stat
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The categories of this paper are: nlin
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The categories of this paper are: eess
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The categories of this paper are: q-bio
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The categories of this paper are: patt-sol
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The categories of this paper are: chem-ph