文章基本信息

标题：Results from a set of three-dimensional numerical experiments of a hot Jupiter atmosphere
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作者：Nathan J. Mayne ; Nathan J. Mayne ; Florian Debras 等
期刊名称：Astronomy & Astrophysics
印刷版ISSN：0004-6361
电子版ISSN：1432-0746
出版年度：2017
卷号：604
页码：1-27
DOI：10.1051/0004-6361/201730465
语种：English
出版社：EDP Sciences
摘要：We present highlights from a large set of simulations of a hot Jupiter atmosphere, nominally based on HD 209458b, aimed at exploring both the evolution of the deep atmosphere, and the acceleration of the zonal flow or jet. We find the occurrence of a super-rotating equatorial jet is robust to changes in various parameters, and over long timescales, even in the absence of strong inner or bottom boundary drag. This jet is diminished in one simulation only, where we strongly force the deep atmosphere equator-to-pole temperature gradient over long timescales. Finally, although the eddy momentum fluxes in our atmosphere show similarities with the proposed mechanism for accelerating jets on tidally-locked planets, the picture appears more complex. We present tentative evidence for a jet driven by a combination of eddy momentum transport and mean flow.
关键词：enhydrodynamicsradiative transferplanets and satellites: atmospheresplanets and satellites: gaseous planetsplanets and satellites: general