Title: Temperature Structure and Evolution of Magnetized Protoplanetary Disks
Speaker: Shoji Mori (Tsinghua Univ.)
Time: 10am, May/26th (Monday)
Location: 19th floor Galaxy Lecture Hall

abstract: Understanding the temperature structure and its evolution in protoplanetary disks is critical to the theory of planet formation. The temperature structure of the disk determines the dust composition, which in turn influences the planetary composition. Moreover, the growth and migration of protoplanets are strongly influenced by the disk’s temperature structure. Accurately determining the temperature structure requires modeling the underlying disk dynamics. Therefore, we have been working on the structure and evolution of disks based on magnetohydrodynamics (MHD) in protoplanetary disks.


In this talk, I will introduce our research on the temperature structure and evolution of protoplanetary disks, which takes MHD into account. In the first study, we developed a framework for the temperature evolution considering the MHD effects and will show the long-term evolution of the global temperature distribution. I will discuss that the difference in temperature influences the orbital migration and water content of super-Earths between turbulent disks and magnetized disks. In the second study, we conducted a state-of-the-art global MHD simulation, including the full non-ideal MHD effects and radiation transport. In particular, I present how the temperature structure is different from the conventional models (viscously heated disks and passively heated disks).
bio: Shoji Mori is a Shuimu Fellow at the Institute for Advanced Study, Tsinghua University. He completed his PhD at Tokyo Institute of Technology in 2019, followed by postdoctoral fellowships at The University of Tokyo and Tohoku University. His research interest is to understand planet formation through the physical processes in protoplanetary disks.