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Astronomy Colloquium 2022 Fall Semester

* Date
Nov 17
* Speaker
이석호(KASI)
* Title
Astrochemical Models in the Protoplanetary Disk: Carbon and Nitrogen Isotope ratios
* Abstract
Isotopic ratios are a powerful tool for investigating the origin of solar system materials and for revealing the possible chemical link between the solar system and the interstellar medium. High spatial resolution and high sensitivity ALMA observations provide new information on isotopic ratios of carbon and nitrogen in the protoplanetary disks where planets form. Astrochemical model including updated networks enables us to study how the observed isotope ratios occur. In this talk, I will introduce the astrochemistry in the low mass star forming regions, especially the protoplanetary disk, and show how the observed carbon and nitrogen isotope ratios are reproduced.
Date Speaker Title Remarks
Sep 1 김진협(University of Oxford) Weak gravitational lensing study of high-redshift galaxy clusters for verifying the ΛCDM paradigm and constructing the mass scaling relation, and the introduction to the Euclid mission Student Orientation 15:30-16:00
Sep 8 Martin Bureau(University of Oxford) WISDOM: Molecular cloud properties and star-formation quenching
Sep 15 김정규(KASI) Numerical modeling of star formation and stellar feedback in giant molecular clouds
Sep 22 이재현(KIAS) Jellyfish galaxies – a trace of ram pressure stripping
Sep 29 명규철(CfA | Harvard & Smithsonian) Galactic Archaeology in the era of large surveys
Oct 6 고종완(KASI) Exploring the low-surface-brightness Universe with K-DRIFT
Oct 13 제106차 한국천문학회
Oct 20 심채경(KASI) 우리나라의 달 탐사
Oct 27 No Colloquium
Nov 3 Paul Yun(El Camino College) NASA Moon, Mars, and Asteroids Missions
Nov 10 Achamveedu Gopakumar (Tata Institute of Fundamental Research, India) Promise of persistent multi-messenger GW astronomy with sources like Blazar OJ287
Nov 17 이석호(KASI) Astrochemical Models in the Protoplanetary Disk: Carbon and Nitrogen Isotope ratios
Nov 24 오슬희(ANU/연세대학교) Kinematics of galaxy bulges, disks, and ionised gas from 3D spectroscopy
Dec 1 전명원(경희대학교) Finding Fossil Records of the First Stars in the Local Dwarfs.
Dec 8 김종수(KASI) Development of a GPU Spectrometer for the ALMA Total Power Array