Protoplanetary disk model based on radiation magnetohydrodynamics simulations

2014 Fiscal Year Final Research Report

• Project/Area Number: 24540244
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Astronomy
• Research Institution: Japan Agency for Marine-Earth Science and Technology
• Principal Investigator: HIROSE Shigenobu 独立行政法人海洋研究開発機構, 数理科学・先端技術研究分野, 主任研究員 (90266924)
• Co-Investigator(Kenkyū-buntansha): SANO Takayoshi 大阪大学, レーザーエネルギー学研究センタ, 助教 (80362606)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 原始惑星系円盤 / 降着円盤 / 熱平衡曲線 / 磁気回転不安定性 / 磁気流体力学 / 輻射輸送 / 水素電離 / 熱不安定

Outline of Final Research Achievements

It is crucial to know correct turbulent states and thermodynamics in protoplanetary disks to understand the planet formation processes. We have computed thermodynamical structure with magnetic turbulence for a local patch of a protoplanetary disk using direct numerical simulations of magnetohydrodynamics with radiative transfer. Specifically, we have obtained a thermal equilibrium curve (effective temperature vs. surface density) at an inner radius where thermal instability due to ionization transitions is expected.

Free Research Field

天体物理学