Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tidal evolution and diffusive growth during high-eccentricity planet
  migration: revisiting the eccentricity distribution of hot Jupiters   High-eccentricity tidal migration is a potential formation channel for hot
Jupiters. During this process, the planetary f-mode may experience a phase of
diffusive growth, allowing its energy to quickly build up to large values. In
Yu et al. (2021, ApJ, 917, 31), we demonstrated that nonlinear mode
interactions between a parent f-mode and daughter f- and p-modes expand the
parameter space over which the diffusive growth of the parent is triggered. We
extend that study by incorporating (1) the angular momentum transfer between
the orbit and the mode, and consequently the evolution of the pericenter
distance, (2) a phenomenological correction to the nonlinear frequency shift at
high parent mode energies, and (3) dissipation of the parent's energy due to
both turbulent convective damping of the daughter modes and strongly nonlinear
wave-breaking events. The new ingredients allow us to follow the coupled
evolution of the mode and orbit over $\gtrsim 10^4$ years, covering the
diffusive evolution from its onset to its termination. We find that the
semi-major axis shrinks by a factor of nearly ten over $10^4$ years,
corresponding to a tidal quality factor $\mathcal{Q}\sim10$. The f-mode's
diffusive growth terminates while the eccentricity is still high, at around
e=0.8-0.95. Using these results, we revisit the eccentricity distribution of
proto-hot Jupiters. We estimate that less than 1 proto-HJ with eccentricity
>0.9 should be expected in Kepler's data once the diffusive regime is accounted
for, explaining the observed paucity of this population.

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The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
24
The categories of this paper are: dg-ga
21
The categories of this paper are: adap-org
25
The categories of this paper are: patt-sol
23
The categories of this paper are: solv-int
32
The categories of this paper are: atom-ph
17
The categories of this paper are: q-fin
1
The categories of this paper are: cs
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
14
The categories of this paper are: math-ph
13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics