Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Chemo-kinematics of the Milky Way from the SDSS-III MARVELS Survey   Combining stellar atmospheric parameters, such as effective temperature,
surface gravity, and metallicity, with barycentric radial velocity data
provides insight into the chemo-dynamics of the Milky Way and our local
Galactic environment. We analyze 3075 stars with spectroscopic data from the
Sloan Digital Sky Survey III (SDSS-III) MARVELS radial velocity survey and
present atmospheric parameters for 2343 dwarf stars using the spectral indices
method, a modified version of the equivalent width method. We present
barycentric radial velocities for a sample of 2610 stars with a median
uncertainty of 0.3 km s$^{-1}$. We determine stellar ages using two independent
methods and calculate ages for 2335 stars with a maximum-likelihood isochronal
age-dating method and for 2194 stars with a Bayesian age-dating method. Using
previously published parallax data we compute Galactic orbits and space
velocities for 2504 stars to explore stellar populations based on kinematic and
age parameters. This study combines good ages and exquisite velocities to
explore local chemo-kinematics of the Milky Way, which complements many of the
recent studies of giant stars with the APOGEE survey, and we find our results
to be in agreement with current chemo-dynamical models of the Milky Way.
Particularly, we find from our metallicity distributions and velocity-age
relations of a kinematically-defined thin disk that the metal rich end has
stars of all ages, even after we clean the sample of highly eccentric stars,
suggesting that radial migration plays a key role in the metallicity scatter of
the thin disk. All stellar parameters and kinematic data derived in this work
are catalogued and published online in machine-readable form.

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The categories of this paper are: math-ph
28
The categories of this paper are: alg-geom
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The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
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The categories of this paper are: cond-mat
31
The categories of this paper are: ao-sci
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The categories of this paper are: hep-lat
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The categories of this paper are: plasm-ph
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The categories of this paper are: funct-an
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The categories of this paper are: eess
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The categories of this paper are: q-fin
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The categories of this paper are: econ
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The categories of this paper are: hep-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: mtrl-th
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The categories of this paper are: cs