Evolution of dust, gas and chemistry in protoplanetary disks: diagnosing planet formation theory and origin of materials in the solar system

2017 Fiscal Year Final Research Report

• Project/Area Number: 25400229
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Astronomy
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: NOMURA Hideko 東京工業大学, 理学院, 准教授 (20397821)
• Co-Investigator(Renkei-kenkyūsha): HOSOKAWA Takashi 京都大学, 大学院理学研究科, 准教授 (30413967)
• Research Collaborator: MILLAR Tom J. ; WALSH Catherine ; ISHIMOTO Daiki ; TAZAKI Ryo ; ONO Tomohiro ; NOTSU Shota
• Project Period (FY): 2013-04-01 – 2018-03-31
• Keywords: 理論天文学 / 星・惑星系形成 / 原始惑星系円盤

Outline of Final Research Achievements

Protoplanetary disks are the birthplace of planets. We studied the formation process of complex organic molecules, leading to life, and the evolution of gas and dust, leading to origin of diversity of exoplanets, in the disks, based on a detailed disk model, using radiative transfer calculations and chemical reaction network, and the latest infrared and (sub)millimeter observations, using ALMA (Atacama Large Millimeter/submillimeter Array) and other facilities. We proposed observational methods to diagnose physical and chemical processes in the disks, taking advantage of physical, chemical and spectroscopic properties of gas and dust. We also studied the environmental effects on the physical and chemical evolution in the disks, such as the properties of the central star, the metallicity, and the irradiation from nearby massive star(s) in young star clusters.

Free Research Field

星・惑星系形成の理論天文学