Mar. 7 Tue 10:00-11:30 太陽系小天体セミナー Zoom
Mar. 8 Wed 15:30-17:00 NAOJ Science Colloquium Zoom
詳細は下記からご覧ください。
=============== Mar 7 Tue ===============
キャンパス：三鷹
セミナー名：太陽系小天体セミナー
定例・臨時の別：定例
日時：3月7日（火曜日）10時00分～11時30分
場所：zoom
講演者：古荘玲子
世話人の連絡先
名前：渡部潤一
=============== Mar 8 Wed ===============
Campus：Mitaka
Seminar：NAOJ Science Colloquium
Regularly Scheduled/Sporadic：Every Wednesday
Date and time：2023 March 8, 15:30-17:00
Place：Zoom
Speaker：Yuki Kambara (M1)
Affiliation：NAOJ
Title：Development of GPU-accelerated simulation code for planetesimal accretion.
Abstract：During the planet formation process, interaction with the gas of protoplanetary disk is important. Gas drag changes the random velocity and semimajor axis of the planetesimals and also causes orbital migration. Recently, a model of gas evolution in protoplanetary disks has been proposed that takes into account the effects of MHD disk wind and photoevaporation. However, only very simplified gas disk models have been considered in simulations of planetesimal accretion. In this study, we investigate the effect of difference of gas disk evolution models on the accretion process of planetesimals. In order to perform N-body simulations considering various gas disk evolution models, I am developing a simulation code. Fourth-order Hermite method is implemented for time integration and GPU acceleration is also implemented. In this presentation, I will present the current situation of the development and the prospects for future simulations.
Facilitator
-Name：Akimasa Kataoka
-Comment：in English