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| DOI | 10.1146/annurev-earth-053018-060352 |
| The Compositional Diversity of Low-Mass Exoplanets | |
| Jontof-Hutter D. | |
| 发表日期 | 2019 |
| ISSN | 0084-6597 |
| 起始页码 | 141 |
| 结束页码 | 171 |
| 卷号 | 47 |
| 英文摘要 | Low-mass planets have an extraordinarily diverse range of bulk compositions, from primarily rocky worlds to those with deep gaseous atmospheres. As techniques for measuring the masses of exoplanets advance the field toward the regime of rocky planets, from ultrashort orbital periods to Venus-like distances, we identify the bounds on planet compositions, where sizes and incident fluxes inform bulk planet properties. In some cases, the precision of measurement of planet masses and sizes is approaching the theoretical uncertainties in planet models. An emerging picture explains aspects of the diversity of low-mass planets, although some problems remain: Do extreme low-density, low-mass planets challenge models of atmospheric mass loss? Are planet sizes strictly separated by bulk composition? Why do some stellar characterizations differ between observational techniques? With the Transiting Exoplanet Survey Satellite (TESS) mission, low-mass exoplanets around the nearest stars will soon be discovered and characterized with unprecedented precision, permitting more detailed planetary modeling and atmospheric characterization of low-mass exoplanets than ever before. ▪ Following the Kepler mission, studies of exoplanetary compositions have entered the terrestrial regime. ▪ Low-mass planets have an extraordinary range of compositions, from Earth-like mixtures of rock and metal to mostly tenuous gas. ▪ The TESS mission will discover low-mass planets that can be studied in more detail than ever before. © 2019 by Annual Reviews. All rights reserved. |
| 关键词 | OrbitsUncertainty analysisAtmospheric characterizationAtmospheric mass lossBulk compositionsDiverse rangeGaseous atmosphereIncident fluxKepler missionOrbital periodsExtrasolar planetsatmospheric dynamicschemical compositionplanetary atmosphereuncertainty analysisVenus |
| 语种 | 英语 |
| 来源机构 | Annual Review of Earth and Planetary Sciences |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/131932 |
| 推荐引用方式 GB/T 7714 | Jontof-Hutter D.. The Compositional Diversity of Low-Mass Exoplanets[J]. Annual Review of Earth and Planetary Sciences,2019,47. |
| APA | Jontof-Hutter D..(2019).The Compositional Diversity of Low-Mass Exoplanets.,47. |
| MLA | Jontof-Hutter D.."The Compositional Diversity of Low-Mass Exoplanets".47(2019). |
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