学术活动
学术活动

位置: 首页 > 学术活动 > 2018秋季 > 正文

Towards Realistic Understandings of Protoplanetary Disks and Planet Formation
主讲人 主持人
时间 2018-10-10 10:00:00 报告题目
首作者 People
职称 联系电话
邮箱 研究方向
主讲人简介 地点 海韵物理楼552教室
办公室 研究院 清华大学

题目:Towards Realistic Understandings of Protoplanetary Disks and Planet Formation

报告人:白雪宁 研究员, 清华大学

时间地点:周三, 2018.10.10上午10:00-12:00, 物理楼552

Abstract:

Planet formation takes place in gas-rich protoplanetary disks (PPDs) orbiting newly born stars. The internal density and flow structures of PPDs, as well as their long-term evolution, play a crucial role in almost all stages of planet formation, yet they are far from being well understood largely due to the complex interplay among various microphysical processes. I will review the basic physical processes in PPDs that govern disk structure and evolution, highlighting the fundamental role of disk ionization and magnetic fields, described by non-ideal magnetohydrodynamic (MHD) effects. Incorporating these processes, I will present global simulations of PPDs aiming to incorporate most realistic disk microphysics, which demonstrate unusual flow structures with major implications on planet formation. The results will also be discussed in the context of current and future observations.