Population Synthesis of Hot Jupiters and Close-in Super Earths

热木星和近距离超级地球的种群合成

• 批准号: 0908807
• 负责人: Peter Bodenheimer
• 金额: $ 33.58万
• 依托单位: University of California-Santa Cruz
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-15 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0908807&HistoricalAwards=false
• 关键词: Population; Synthesis; Hot; Jupiters; Close

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).Drs. Peter Bodenheimer and Douglas Lin (University of California - Santa Cruz) will undertake a study to determine the frequency of habitable planets around other stars. In recent years, astronomers have discovered over 300 giant planets, ranging in mass from Neptune-sized to several Jupiter masses, but have not yet found small planets like the Earth. The discovery of these massive planets has provided support to the sequential accretion hypothesis (SAH), which assumes that the massive planets were formed, together with a rich population of earth-like planets, through grain condensation, planetesimal coagulation, embryo merging, and gas accretion. The goals of this project include identifying the dominant effects which led to the emergence of diverse populations of planets, including gas giants, hot Jupiters, super Earths, and habitable planets; predicting observable features such as the mass-period and period-eccentricity distributions which are unique signatures of SAH versus other planet formation scenarios; and discovering dependence of planetary properties as functions of the mass and chemical composition of their host stars.The project will contribute toward NSF's goal of integration of research and scientific education by using the talents of two graduate students and some undergraduates in various aspects of the theoretical calculations. Results will be disseminated through public lectures on planetary science and through contributions to science journals for the general public.

该奖项是根据2009年《美国回收与再投资法》（公法111-5）.DRS资助的。彼得·博登海默（Peter Bodenheimer）和道格拉斯·林（Douglas Lin）（加利福尼亚大学 - 圣克鲁斯分校）将进行一项研究，以确定其他恒星周围可居住行星的频率。 近年来，天文学家发现了300多个巨型行星，从海王星大小到几个木星群体，但尚未找到像地球这样的小行星。 这些巨大的行星的发现为顺序积分假说（SAH）提供了支持，该假设假设通过谷物凝结，行星凝结，胚胎融合和气体积聚，假设大型行星与众多的地球样行星一起形成了巨大的行星。 该项目的目标包括确定导致行星各种人群的出现的主要影响，包括天然气巨头，热木星，超级地球和可居住的行星；预测可观察到的特征，例如质量周期和时期分布分布，这些分布是SAH与其他行星形成方案的独特特征；并发现行星特性作为其宿主星的质量和化学成分的依赖性。该项目将通过使用两个研究生的才能以及在理论计算的各个方面的各个方面的才能来帮助NSF整合研究和科学教育的目标。 结果将通过关于行星科学的公开演讲以及对公众的科学期刊的贡献来传播。