Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effects of Proxima Centauri on Planet Formation in Alpha Centauri   Proxima Centauri is an M dwarf approximately 15,000 AU from the Alpha
Centauri binary, comoving and likely in a loosely bound orbit. Dynamic
simulations show this configuration can form from a more tightly bound triple
system. As our nearest neighbors, these stars command great interest as
potential planet hosts, and the dynamics of the stars govern the formation of
any planets within the system. Here we present a scenario for the evolution of
Alpha Centauri A and B and Proxima Centauri as a triple system. Based on N-body
simulations, we determine this pathway to formation is plausible, and we
quantify the implications for planet formation in the Alpha Centauri binary. We
expect this formation scenario may have truncated the circumstellar disk
slightly more than a system that formed in the current configuration, but that
it most likely does not prevent terrestrial planet formation. We simulate
planet formation in this system and find that in most scenarios, two or more
terrestrial planets can be expected around either Alpha Centauri A or B,
orbiting in a region out to approximately 2 AU, assuming planetesimals and
planetary embryos are able to first form in the system. Additionally,
terrestrial planet formation and stability in Proxima Centauri's habitable zone
is also plausible. However, an absence of planets around these stars may be
indicative of highly disruptive stellar dynamics in the past.

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The categories of this paper are: quant-ph
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The categories of this paper are: gr-qc
0
The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: math-ph
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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: hep-th
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The categories of this paper are: econ
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The categories of this paper are: plasm-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: eess
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The categories of this paper are: cond-mat
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The categories of this paper are: q-alg