Tidal dissipation in stars and planets: simulations from first principles
恒星和行星中的潮汐耗散:根据第一原理进行模拟
基本信息
- 批准号:ST/R00059X/1
- 负责人:
- 金额:$ 30.39万
- 依托单位:
- 依托单位国家:英国
- 项目类别:Research Grant
- 财政年份:2018
- 资助国家:英国
- 起止时间:2018 至 无数据
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Many extrasolar planets orbit their stars in only a few Earth days. At such close distances, gravitational tidal interactions can play an important role in modifying planetary orbits and stellar and planetary spins. The timescales for these evolutionary processes depend on how efficiently the kinetic energy of tidal flows is dissipated inside stars and planets, but this is not well understood theoretically. This project is computational in nature and will involve first principles numerical simulations, employing state-of-the-art algorithms on high-performance computers, to explore the mechanisms of tidal dissipation in the fluid layers of stars and planets. In particular, I propose to investigate the interaction between tidal flows and turbulent convective flows in rotating stars, and the mechanisms that lead to alignment of the stellar (and planetary) spin and the planetary orbit. The results from these simulations will be used to interpret astrophysical observations and to make predictions, for example, of the rotation rates of planet-hosting stars, and of possible orbital decay of the shortest-period planets that transit in front of their stars. These predictions can be tested by future observations using e.g. SuperWASP, NGTS, CHEOPS, TESS and PLATO.
许多太阳系外行星围绕恒星运行的时间只有几个地球日。在如此近的距离,重力潮汐相互作用可以在改变行星轨道以及恒星和行星自转方面发挥重要作用。这些进化过程的时间尺度取决于潮汐流动能在恒星和行星内部的消散效率,但从理论上讲,这一点还没有得到很好的理解。这个项目本质上是计算性的,将涉及第一原理数值模拟,在高性能计算机上使用最先进的算法,以探索恒星和行星流体层中的潮汐消散机制。特别是,我建议研究旋转恒星中潮汐流动和湍流对流流动之间的相互作用,以及导致恒星(和行星)自转和行星轨道对齐的机制。这些模拟的结果将被用来解释天体物理观测,并做出预测,例如,拥有行星的恒星的自转速度,以及在其恒星前面运行的最短周期行星可能的轨道衰变。这些预测可以通过使用例如SuperWASP、NGTS、Cheops、Tess和柏拉图的未来观察来验证。
项目成果
期刊论文数量(10)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Layered semi-convection and tides in giant planet interiors II. Tidal dissipation
巨行星内部的分层半对流和潮汐 II。
- DOI:10.1051/0004-6361/201833674
- 发表时间:2019
- 期刊:
- 影响因子:6.5
- 作者:André Q
- 通讯作者:André Q
The effects of nonlinearities on tidal flows in the convective envelopes of rotating stars and planets in exoplanetary systems
非线性对系外行星系统中旋转恒星和行星对流包层潮汐流的影响
- DOI:10.48550/arxiv.2207.12780
- 发表时间:2022
- 期刊:
- 影响因子:0
- 作者:Astoul A
- 通讯作者:Astoul A
On the interaction between fast tides and convection
快潮与对流之间的相互作用
- DOI:10.1093/mnrasl/slab077
- 发表时间:2021
- 期刊:
- 影响因子:0
- 作者:Barker A
- 通讯作者:Barker A
Non-linear effects on tides in the convective envelope of low-mass stars and giant gaseous planets
低质量恒星和巨型气态行星对流包层中潮汐的非线性效应
- DOI:10.5194/epsc2021-813
- 发表时间:2021
- 期刊:
- 影响因子:0
- 作者:Astoul A
- 通讯作者:Astoul A
Layered semi-convection and tides in giant planet interiors
- DOI:
- 发表时间:2017-10
- 期刊:
- 影响因子:0
- 作者:Q. André;S. Mathis;A. Barker
- 通讯作者:Q. André;S. Mathis;A. Barker
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
Adrian Barker其他文献
Adrian Barker的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('Adrian Barker', 18)}}的其他基金
相似海外基金
Collaborative Research: GEM: Propagation and Dissipation of Electromagnetic Ion Cyclotron Waves in the Magnetosphere and Ionosphere
合作研究:GEM:磁层和电离层中电磁离子回旋波的传播和耗散
- 批准号:
2247396 - 财政年份:2024
- 资助金额:
$ 30.39万 - 项目类别:
Standard Grant
Spray cooling high power dissipation Applications (SANGRIA): From fundamentals to Design
喷雾冷却高功耗应用 (SANGRIA):从基础到设计
- 批准号:
EP/X015351/1 - 财政年份:2024
- 资助金额:
$ 30.39万 - 项目类别:
Research Grant
Collaborative Research: GEM: Propagation and Dissipation of Electromagnetic Ion Cyclotron Waves in the Magnetosphere and Ionosphere
合作研究:GEM:磁层和电离层中电磁离子回旋波的传播和耗散
- 批准号:
2247398 - 财政年份:2024
- 资助金额:
$ 30.39万 - 项目类别:
Standard Grant
Harnessing Magnonic Nonreciprocity Through Dissipation Engineering
通过耗散工程利用磁非互易性
- 批准号:
2337713 - 财政年份:2024
- 资助金额:
$ 30.39万 - 项目类别:
Standard Grant
Spray cooling high power dissipation Applications (SANGRIA): From fundamentals to Design
喷雾冷却高功耗应用 (SANGRIA):从基础到设计
- 批准号:
EP/X015327/1 - 财政年份:2024
- 资助金额:
$ 30.39万 - 项目类别:
Research Grant
Collaborative Research: GEM: Propagation and Dissipation of Electromagnetic Ion Cyclotron Waves in the Magnetosphere and Ionosphere
合作研究:GEM:磁层和电离层中电磁离子回旋波的传播和耗散
- 批准号:
2247395 - 财政年份:2024
- 资助金额:
$ 30.39万 - 项目类别:
Standard Grant
Spray cooling high power dissipation applications (SANGRIA): From Fundamentals to Design
喷雾冷却高功耗应用 (SANGRIA):从基础知识到设计
- 批准号:
EP/X015335/1 - 财政年份:2024
- 资助金额:
$ 30.39万 - 项目类别:
Research Grant
AGS-FIRP Track 2: Understanding Vertical Variation of Energy Dissipation near the Surface for Solving the Mystery of the Observed Surface Energy Imbalance
AGS-FIRP 轨道 2:了解地表附近能量耗散的垂直变化,以解决观测到的地表能量不平衡之谜
- 批准号:
2231229 - 财政年份:2023
- 资助金额:
$ 30.39万 - 项目类别:
Standard Grant
CAREER: Dissipation Mechanisms and Damping in Smart Elastomers with Intermolecular Organization
职业:具有分子间组织的智能弹性体的耗散机制和阻尼
- 批准号:
2238035 - 财政年份:2023
- 资助金额:
$ 30.39万 - 项目类别:
Standard Grant
Energy dissipation characterisation in dynamic brittle fracture
动态脆性断裂的能量耗散表征
- 批准号:
DP230100749 - 财政年份:2023
- 资助金额:
$ 30.39万 - 项目类别:
Discovery Projects