We are pleased to announce an upcoming Journal Club (JC).
Anyone interested in the subject is welcome to participate.
2nd OMEG JC Date :
Thursday, January 13, 2022
Place :
Room 318 of White Horse Building
(백마관 318호)
Time :
2 P.M.
(오후 2시)
Title : Exotic Molecules in Interstellar Medium
Abstract :
Recent discovery of extic molecules thanks to the development of astro spectroscopy give rise to interesting results.
The first molecules of Helium hydride ion are thought to be produced after the Big Bang, which is followed
by hydrogen atoms before the recombination era. And the molecular structure of noble gas is also interesting
because of the origin. Another exotic molecule is the anthracene composed of three benzene molecules,
which is one of the most complex molecules in the interstellar medium and could be related to
the production of organic matter in the Universe.
In the discussion, I would like to discuss the meaning of the discovery and suggest
how to understand the origin of the exotic molecule and their structures through the DFT theory.
최근의 천체 분광학의 급속한 발전으로 성간물질에 존재하는 특이 분자구조의 발견이 이어지고 있다.
빅뱅 핵합성 이후에 형성되는 최초의 분자구조라고 할 수 있는 hellium hydride ion,
게자리 성운에서 발견되는 Noble gas 의 molecule, 그리고 벤젠 구조가 3개 결합되어 있어 성간물질에서
발견되는 가장 복잡한 유기물인 anthracene 등의 발견은 매우 흥미로운 발견이다.
천체분광학을 통한 이들 발견을 소개하고 그 구조 연구를 통하여 그 기원을 탐구할 수 있는 방법을 생각해보고자 한다.
References :
1. Astrophysical detection of the helium hydride ion HeH+
Nature, volume 568, pages 357-359 (2019)
2. Detection of a Noble Gas Molecular Ion, 36ArH+, in the Crab Nebula
Science, 13 Dec 2013, Vol. 342, Issue 6164, pp. 1343-1345
3. Mon. Not. R. Astron. Soc. 407, 2157-2165 (2010)
A search for interstellar anthracene towards the Perseus anomalous microwave emission region
Presenter :
Prof. Myung-Ki Cheoun
(천명기 교수님)
Thank you for your attention.
Sincerely,
Jubin.