October 8 Tue 10:00-11:30
太陽系小天体セミナー (Solar System Minor Body Seminar)
Zoom
October 11 Fri 15:30-16:30
NAOJ Seminar
hybrid; Large Seminar Room in Subaru Building and Zoom
詳細は下記からご覧ください。
=============== October 8 Tue===============
キャンパス：三鷹
セミナー名：太陽系小天体セミナー (Solar System Minor Body Seminar)
定例・臨時の別：定例
日時： 10月 8日（火曜日）10時～11時30分
場所：zoom
タイトル: 直近の彗星観測と研究計画の議論
世話人の連絡先
-名前：渡部潤一
備考：zoomでの参加
===============October 11 Fri==============
Campus：Mitaka
Seminar：NAOJ Seminar
Regularly Scheduled/Sporadic：Regular
Date and time：October 11, 2024 15:30-16:30
Place：Zoom/Large Seminar Room (hybrid)
Speaker：Dr. Nagayoshi Ohashi
Affiliation：ASIAA
Title：Probing the earliest stage of planet formation
Abstract: It is commonly accepted that planets are formed in disks around young stars in the course of star formation. This indicates that the formation of planets is closely associated with the formation of stars. Despite significant advancements in our understanding of planet formation in recent years, the link between this process and star formation has remained unclear. This is because previous studies of planet formation have concentrated on objects that are mostly in the Class II stage of star formation, where the primary processes of star formation, such as mass infall and accretion, have largely been completed. As a consequence, a fundamental question pertaining to planet formation—namely, “when and how planet formation occurs during star formation”—remains unanswered. However, recent studies have suggested that planet formation may occur earlier than the Class II stage, i.e., the Class 0/I stage, where the central star is still deeply embedded in a natal dense molecular core. In this presentation, I will discuss early planet formation in embedded disks, with an emphasis on our ALMA large program, eDisk, which is studying early planet formation in a more systematic manner at a high angular resolution.
Facilitator
-Name：Tai Oshima