PLANETARY POPULATION SYNTHESIS COUPLED WITH ATMOSPHERIC ESCAPE: A STATISTICAL VIEW OF EVAPORATION
文献类型：期刊论文
| 作者 | Jin, Sheng1,2,3; Mordasini, Christoph2; Parmentier, Vivien4; van Boekel, Roy2; Henning, Thomas2; Ji, Jianghui1,5
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2014-11-01 |
| 卷号 | 795期号:1页码:65 |
| ISSN号 | 0004-637X |
| 关键词 | planets and satellites: atmospheres planets and satellites: interiors planets and satellites: physical evolution |
| 英文摘要 | We apply hydrodynamic evaporation models to different synthetic planet populations that were obtained from a planet formation code based on the core-accretion paradigm. We investigated the evolution of the planet populations using several evaporation models, which are distinguished by the driving force of the escape flow (X-ray or EUV), the heating efficiency in energy-limited evaporation regimes, or both. Although the mass distribution of the planet populations is barely affected by evaporation, the radius distribution clearly shows a break at approximately 2R(circle plus). We find that evaporation can lead to a bimodal distribution of planetary sizes and to an "evaporation valley" running diagonally downward in the orbital distance-planetary radius plane, separating bare cores from low-mass planets that have kept some primordial H/He. Furthermore, this bimodal distribution is related to the initial characteristics of the planetary populations because low-mass planetary cores can only accrete small primordial H/He envelopes and their envelope masses are proportional to their core masses. We also find that the population-wide effect of evaporation is not sensitive to the heating efficiency of energy-limited description. However, in two extreme cases, namely without evaporation or with a 100% heating efficiency in an evaporation model, the final size distributions show significant differences; these two scenarios can be ruled out from the size distribution of Kepler candidates. |
| 学科主题 | 天文和天体物理 |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | EARTH-LIKE PLANETS ; SUN-LIKE STARS ; HOT JUPITERS ; SUPER-EARTHS ; GIANT PLANETS ; MASS-LOSS ; X-RAY ; EXTRASOLAR PLANETS ; HD 209458B ; IRRADIATED ATMOSPHERES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000343857300065 |
| 公开日期 | 2015-05-22 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/11568]  |
| 专题 | 紫金山天文台_行星科学与深空探测实验室 |
| 作者单位 | 1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China 2.Max Planck Inst Astron, D-69117 Heidelberg, Germany 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Univ Nice Sophia Antipolis, CNRS, Observ Cote Azur, Lab Lagrange,UMR7293, F-06300 Nice, France 5.Chinese Acad Sci, Key Lab Planetary Sci, Nanjing 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jin, Sheng,Mordasini, Christoph,Parmentier, Vivien,et al. PLANETARY POPULATION SYNTHESIS COUPLED WITH ATMOSPHERIC ESCAPE: A STATISTICAL VIEW OF EVAPORATION[J]. ASTROPHYSICAL JOURNAL,2014,795(1):65. |
| APA | Jin, Sheng,Mordasini, Christoph,Parmentier, Vivien,van Boekel, Roy,Henning, Thomas,&Ji, Jianghui.(2014).PLANETARY POPULATION SYNTHESIS COUPLED WITH ATMOSPHERIC ESCAPE: A STATISTICAL VIEW OF EVAPORATION.ASTROPHYSICAL JOURNAL,795(1),65. |
| MLA | Jin, Sheng,et al."PLANETARY POPULATION SYNTHESIS COUPLED WITH ATMOSPHERIC ESCAPE: A STATISTICAL VIEW OF EVAPORATION".ASTROPHYSICAL JOURNAL 795.1(2014):65. |
入库方式： OAI收割
来源：紫金山天文台
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