Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Faint source star planetary microlensing: the discovery of the cold gas
  giant planet OGLE-2014-BLG-0676Lb   We report the discovery of a planet --- OGLE-2014-BLG-0676Lb --- via
gravitational microlensing. Observations for the lensing event were made by the
MOA, OGLE, Wise, RoboNET/LCOGT, MiNDSTEp and $\mu$FUN groups. All analyses of
the light curve data favour a lens system comprising a planetary mass orbiting
a host star. The most favoured binary lens model has a mass ratio between the
two lens masses of $(4.78 \pm 0.13)\times 10^{-3}$. Subject to some important
assumptions, a Bayesian probability density analysis suggests the lens system
comprises a $3.09_{-1.12}^{+1.02}$ M_jup planet orbiting a
$0.62_{-0.22}^{+0.20}$ M_sun host star at a deprojected orbital separation of
$4.40_{-1.46}^{+2.16}$ AU. The distance to the lens system is
$2.22_{-0.83}^{+0.96}$ kpc. Planet OGLE-2014-BLG-0676Lb provides additional
data to the growing number of cool planets discovered using gravitational
microlensing against which planetary formation theories may be tested. Most of
the light in the baseline of this event is expected to come from the lens and
thus high-resolution imaging observations could confirm our planetary model
interpretation.

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The categories of this paper are: plasm-ph
14
The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
9
The categories of this paper are: nlin
12
The categories of this paper are: nucl-th
8
The categories of this paper are: hep-ex
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The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con
7
The categories of this paper are: hep-th
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The categories of this paper are: mtrl-th
5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs
2
The categories of this paper are: math
29
The categories of this paper are: funct-an