- 제목
- [09/28] Galactic Archaeology in the era of large surveys
- 작성일
- 2022.09.23
- 작성자
- 천문우주학과
- 게시글 내용
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---------------------------------------------------------------------------------------------------------------------------제목: Galactic Archaeology in the era of large surveys연사: Dr. GyuChul Myeong (CFA Fellow, Harvard Smithsonian Center for Astrophysics)일자: 2022-09-28, 17:00장소: Science Hall B133---------------------------------------------------------------------------------------------------------------------------
Abstract
Recent advancements in large scale astronomical surveys have introduced a new era for Galactic archaeology. The combination of quality astrometric (Gaia) and chemical (e.g., APOGEE, GALAH) data provides us with a rich hyper-dimensional dataset for ~1.5 billion stars, including the full six-dimensional phase space information and a variety of chemical abundances. Coupled with recent computational developments on numerical methods for dynamical analysis, we can construct an effective arena for chemo-dynamical study of our Galaxy. Understanding the Galaxy’s formation/evolution and the governing physical process will help us to better understand the current LCDM picture in the galactic scale. With our chemo-dynamical approach, we study the Galactic assembly history and the origin of Galactic components as well as their associations, which involve a major Galactic merger event that vastly reshaped our Galaxy.
* Talk to be delivered in English
- 발표자
- Dr. GyuChul Myeong