CAREER: The Formation of Stars, Planets, and Moons: Applying Similar Physics to Different Systems and Enhancing Scientific Computing Literacy

职业：恒星、行星和卫星的形成：将类似的物理应用于不同的系统并提高科学计算素养

• 批准号: 1753168
• 负责人: Zhaohuan Zhu
• 金额: $ 59.35万
• 依托单位: University of Nevada Las Vegas
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-09-01 至 2023-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1753168&HistoricalAwards=false
• 关键词: CAREER; Formation; Stars; Planets; Moons

Astronomers are now convinced that many, if not most, stars are accompanied by planets. They are interested in learning how planets form, and whether or not the Solar System is representative of the Universe. It is believed that planets formed from a disk of material around the young Sun; this disk is long gone for our Solar System. In this project, the investigator will use computers and his own computer code to model the properties of how such disks form and change under the effects of radiation from the star and magnetic fields. He will compare his models with observations obtained from space missions and ground-based telescopes. He will work with educators at museums and supercomputer centers to generate visualizations to help the public understand this work. He will also develop courses and workshops in computational methods for junior researchers and for students at his home institutions.The proposed program uses the 3-D magnetohydrodynamic (MHD) code Athena++. The PI will 1) Model the effects of radiation on the accretion process, 2) Construct models of both non-ideal MHD effects and thermal dynamics on the structure of protoplanetary disks, and 3) Carry out simulations of disks around protoplanets that share similarities with the simulations described in 1 and 2. He will compare his simulated models with observations from space missions such as Spitzer and Herschel and ground-based telescopes such as ALMA, EVLA, VLT, Subaru, and Gemini. Finally, he will make predictions for future observations in the next decade with instruments such as the TMT.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

天文学家现在确信，即使不是大多数，也有许多恒星都有行星相伴。 他们感兴趣的是了解行星是如何形成的，以及太阳系是否代表宇宙。人们认为行星是由围绕年轻太阳的物质盘形成的;这个盘在我们的太阳系中已经消失很久了。在这个项目中，研究人员将使用计算机和他自己的计算机代码来模拟这些圆盘在星星辐射和磁场的影响下如何形成和变化的特性。 他将把他的模型与从太空任务和地面望远镜获得的观测结果进行比较。他将与博物馆和超级计算机中心的教育工作者合作，生成可视化，以帮助公众理解这项工作。 他还将为初级研究人员和他所在机构的学生开发计算方法方面的课程和讲习班。拟议的计划使用3-D磁流体动力学（MHD）代码Athena++。 PI将1）模拟辐射对吸积过程的影响，2）构建非理想MHD效应和原行星盘结构的热动力学模型，3）对原行星周围的盘进行模拟，这些模拟与1和2中描述的模拟相似。 他将把他的模拟模型与斯皮策和赫歇尔等太空任务以及阿尔马、EVLA、VLT、斯巴鲁和双子座等地面望远镜的观测结果进行比较。 最后，他将使用TMT等工具对未来十年的观测进行预测。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

Substructures in Compact Disks of the Taurus Star-forming Region

金牛座恒星形成区致密盘的子结构

• DOI: 10.3847/1538-4357/acd334
• 发表时间: 2023
• 期刊: The Astrophysical Journal
• 作者: Zhang, Shangjia;Kalscheur, Matt;Long, Feng;Zhang, Ke;Long, Deryl E.;Bergin, Edwin A.;Zhu, Zhaohuan;Trapman, Leon
• 通讯作者: Trapman, Leon

The effects of disc self-gravity and radiative cooling on the formation of gaps and spirals by young planets

• DOI: 10.1093/mnras/staa404
• 发表时间: 2019-11
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Shangjia Zhang;Zhaohuan Zhu

Direct Formation of Planetary Embryos in Self-gravitating Disks

自引力盘中行星胚胎的直接形成

• DOI: 10.3847/1538-4357/ac7228
• 发表时间: 2022
• 期刊: The Astrophysical Journal
• 作者: Baehr, Hans;Zhu, Zhaohuan;Yang, Chao-Chin
• 通讯作者: Yang, Chao-Chin

Streaming instability with multiple dust species – II. Turbulence and dust–gas dynamics at non-linear saturation

多种粉尘的流动不稳定性 - II. 非线性饱和下的湍流和粉尘 - 气体动力学

• DOI: 10.1093/mnras/stab2959
• 发表时间: 2021
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Yang, Chao-Chin;Zhu, Zhaohuan
• 通讯作者: Zhu, Zhaohuan

Self-consistent Ring Model in Protoplanetary Disks: Temperature Dips and Substructure Formation

原行星盘中的自洽环模型：温度骤降和子结构形成

• DOI: 10.3847/1538-4357/ac2c82
• 发表时间: 2021
• 期刊: The Astrophysical Journal
• 作者: Zhang, Shangjia;Hu, Xiao;Zhu, Zhaohuan;Bae, Jaehan
• 通讯作者: Bae, Jaehan