Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: GJ 273: On the formation, dynamical evolution and habitability of a
  planetary system hosted by an M dwarf at 3.75 parsec   Planets orbiting low-mass stars such as M dwarfs are now considered a
cornerstone in the search for life-harbouring planets. GJ273 is a planetary
system orbiting an M dwarf only 3.75 pc away, composed of two confirmed
planets, GJ273b and GJ273c, and two promising candidates, GJ273d and GJ273e.
Planet GJ273b resides in the habitable zone. Currently, due to a lack of
observed planetary transits, only the minimum masses of the planets are
known.Despite being an interesting system, the GJ273 planetary system is still
poorly studied. We aim at precisely determine the physical parameters of the
individual planets, in particular to break the mass--inclination degeneracy to
accurately determine the mass of the planets. Moreover, we present thorough
characterisation of planet GJ273b in terms of its potential habitability. We
explored the planetary formation and hydration phases of GJ273 during the first
100 Myr. Then, we analysed the stability of the system. We also searched for
regions which may harbour minor bodies such as an asteroid belt and Kuiper belt
analogues. We found that the four-planet configuration of the system allows us
to break the mass--inclination degeneracy with the following masses: $2.89\leq
M_{\mathrm{b}}\leq3.03\,\mathrm{M}_\oplus$, $1.18\leq
M_{\mathrm{c}}\leq1.24\,\mathrm{M}_\oplus$, $10.80\leq
M_{\mathrm{d}}\leq11.35\,\mathrm{M}_\oplus$, and $9.30\leq
M_{\mathrm{e}}\leq9.70\,\mathrm{M}_\oplus$. That is an Earth-mass planet, a
super-Earth and two mini-Neptunes. Moreover, GJ273b is found to be an efficient
water captor and GJ273c likely a dry planet. Several stable regions are
predicted where minor bodies might reside. We comprehensively discuss the
habitability of GJ273b.

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The categories of this paper are: stat
1
The categories of this paper are: cs
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The categories of this paper are: math-ph
2
The categories of this paper are: math
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The categories of this paper are: q-fin
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The categories of this paper are: hep-th
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The categories of this paper are: nucl-th
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The categories of this paper are: bayes-an
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The categories of this paper are: q-bio
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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: patt-sol
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The categories of this paper are: hep-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: acc-phys