Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The HADES RV Programme with HARPS-N@TNG VIII. Gl15A: A multiple wide
  planetary system sculpted by binary interaction   We present 20 years of radial velocity (RV) measurements of the M1 dwarf
Gl15A, combining 5 years of intensive RV monitoring with the HARPS-N
spectrograph with 15 years of archival HIRES/Keck RV data. We carry out an
MCMC-based analysis of the RV time series, inclusive of Gaussian Process (GP)
approach to the description of stellar activity induced RV variations.
  Our analysis confirms the Keplerian nature and refines the orbital solution
for the 11.44-day period super Earth, Gl15A\,b, reducing its amplitude to
$1.68^{+0.17}_{-0.18}$ m s$^{-1}$ ($M \sin i = 3.03^{+0.46}_{-0.44}$
M$_\oplus$), and successfully models a long-term trend in the combined RV
dataset in terms of a Keplerian orbit with a period around 7600 days and an
amplitude of $2.5^{+1.3}_{-1.0}$ m s$^{-1}$, corresponding to a super-Neptune
mass ($M \sin i = 36^{+25}_{-18}$ M$_\oplus$) planetary companion.
  We also discuss the present orbital configuration of Gl15A planetary system
in terms of the possible outcomes of Lidov-Kozai interactions with the
wide-separation companion Gl15B in a suite of detailed numerical simulations.
In order to improve the results of the dynamical analysis, we derive a new
orbital solution for the binary system, combining our RV measurements with
astrometric data from the WDS catalogue.
  The eccentric Lidov-Kozai analysis shows the strong influence of Gl15B on the
Gl15A planetary system, which can produce orbits compatible with the observed
configuration for initial inclinations of the planetary system between
$75^\circ$ and $90^\circ$, and can also enhance the eccentricity of the outer
planet well above the observed value, even resulting in orbital instability,
for inclinations around $0^\circ$ and $15^\circ - 30^\circ$.
  The Gl15A system is the multi-planet system closest to Earth, at $3.57$ pc,
and hosts the longest period RV sub-jovian mass planet discovered so far.

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The categories of this paper are: quant-ph
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The categories of this paper are: physics
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The categories of this paper are: chem-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: q-bio
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The categories of this paper are: acc-phys
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The categories of this paper are: bayes-an
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The categories of this paper are: solv-int
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The categories of this paper are: nlin
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The categories of this paper are: gr-qc
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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: stat
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-lat
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The categories of this paper are: adap-org