A limit on eccentricity growth from global 3D simulations of disc-planet interactions
A limit on eccentricity growth from global 3D simulations of disc-planet interactions
复制标题
圆盘-行星相互作用的全局 3D 模拟对偏心率增长的限制
DOI:
10.1093/mnras/sts254
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发表时间:
2013
影响因子:
4.8
通讯作者:
Dunhill A
中科院分区:
文献类型:
--
作者:
Dunhill A
We present high-resolution 3D simulations of the planet–disc interaction using smoothed particle hydrodynamics to investigate the possibility of driving eccentricity growth by this mechanism. For models with a given disc viscosity (α = 0.01), we find that for small planet masses (a few Jupiter masses) and canonical surface densities, no significant eccentricity growth is seen over the duration of our simulations. This contrasts with the limiting case of large planet mass (over 20MJup) and extremely high surface densities, where we find eccentricity growth in agreement with previously published results. We identify the cause of this as being a threshold surface density for a given planet mass below which eccentricity growth cannot be excited by this method. Further, the radial profile of the disc surface density is found to have a stronger effect on eccentricity growth than previously acknowledged, implying that care must be taken when contrasting results from different disc models. We discuss the implication of this result for real planets embedded in gaseous discs, and suggest that the disc–planet interaction does not contribute significantly to observed exoplanet eccentricities.
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DOI:
10.1086/338961
发表时间:
2001
期刊:
The Astrophysical Journal Letters
影响因子:
--
作者:
Eugene Chiang;Debra A. Fischer;E. Thommes
通讯作者:
E. Thommes
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
P. Cossins;G. Lodato;L. T. D. O. Physics;Astronomy;U. Leicester;UK Dipartimento di Fisica;U. Milano;I. E. G. Observatory;Garching;H Germany
通讯作者:
H Germany
DOI:
--
发表时间:
--
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影响因子:
--
作者:
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--
DOI:
10.1086/346202
发表时间:
2002
期刊:
The Astrophysical Journal
影响因子:
--
作者:
P. Goldreich;R. Sari
通讯作者:
R. Sari
DOI:
10.1086/165827
发表时间:
1987
期刊:
The Astrophysical Journal
影响因子:
--
作者:
A. Sargent;S. Beckwith
通讯作者:
S. Beckwith