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题名: Global models of planet formation and evolution
作者: Mordasini, C.1; Molliere, P.2; Dittkrist, K. -M.1; Jin, S.1, 2; Alibert, Y.3, 4
刊名: INTERNATIONAL JOURNAL OF ASTROBIOLOGY
出版日期: 2015-04-01
卷号: 14, 期号:2, 页码:201-232
关键词: planet formation theory ; planet evolution theory ; population synthesis ; extrasolar planets
学科分类: 天文和天体物理
DOI: 10.1017/S1473550414000263
文章类型: Review
英文摘要: Despite the strong increase in observational data on extrasolar planets, the processes that led to the formation of these planets are still not well understood. However, thanks to the high number of extrasolar planets that have been discovered, it is now possible to look at the planets as a population that puts statistical constraints on theoretical formation models. A method that uses these constraints is planetary population synthesis where synthetic planetary populations are generated and compared to the actual population. The key element of the population synthesis method is a global model of planet formation and evolution. These models directly predict observable planetary properties based on properties of the natal protoplanetary disc, linking two important classes of astrophysical objects. To do so, global models build on the simplified results of many specialized models that address one specific physical mechanism. We thoroughly review the physics of the sub-models included in global formation models. The sub-models can be classified as models describing the protoplanetary disc (of gas and solids), those that describe one (proto)planet (its solid core, gaseous envelope and atmosphere), and finally those that describe the interactions (orbital migration and N-body interaction). We compare the approaches taken in different global models, discuss the links between specialized and global models, and identify physical processes that require improved descriptions in future work. We then shortly address important results of planetary population synthesis like the planetary mass function or the mass-radius relationship. With these statistical results, the global effects of physical mechanisms occurring during planet formation and evolution become apparent, and specialized models describing them can be put to the observational test. Owing to their nature as meta models, global models depend on the results of specialized models, and therefore on the development of the field of planet formation theory as a whole. Because there are important uncertainties in this theory, it is likely that the global models will in future undergo significant modifications. Despite these limitations, global models can already now yield many testable predictions. With future global models addressing the geophysical characteristics of the synthetic planets, it should eventually become possible to make predictions about the habitability of planets based on their formation and evolution.
WOS标题词: Science & Technology ; Physical Sciences ; Life Sciences & Biomedicine
类目[WOS]: Astronomy & Astrophysics ; Biology ; Geosciences, Multidisciplinary
研究领域[WOS]: Astronomy & Astrophysics ; Life Sciences & Biomedicine - Other Topics ; Geology
关键词[WOS]: EXTRASOLAR GIANT PLANETS ; LOW-MASS STARS ; RAYLEIGH-TAYLOR INSTABILITY ; T TAURI DISKS ; PROTOPLANETARY DISKS ; DETERMINISTIC MODEL ; SUPER-EARTH ; CIRCUMSTELLAR DISKS ; HOT JUPITERS ; COMET SHOEMAKER-LEVY-9
收录类别: SCI
所属项目名称: PMO_LIB-IR
语种: 英语
WOS记录号: WOS:000351349900008
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/14911
Appears in Collections:行星科学与深空探测实验室_期刊论文
太阳活动的多波段观测研究团组_期刊论文

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作者单位: 1.Max Planck Inst Astron, D-69117 Heidelberg, Germany
2.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
3.Univ Bern, Inst Phys, Ctr Space & Habitabil, CH-3012 Bern, Switzerland
4.Observ Besancon, Inst UTINAM, CNRS, UMR 6213, F-25010 Besancon, France
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