Radio Astronomy Division

한국천문연구원 전파천문본부

Radio Colloquium

attachment This is a "weekly", very informal colloquium hosted by the radio division of KASI. Anyone can utilize this colloquium spot for a variety of purposes: e.g., to introduce interesting scientific/non-scientific results or news, to report about a meeting you recently attended, to practice your oral presentation for a coming meeting, and even to celebrate something. Depending on what to do, you can propose the meeting place as well: e.g., the seminar room (331-2) or the coffee/tea place of the Jangyoungsil hall. In the case of an oral presentation, ideally it is expected to be no longer than 30 min. Please contact me [Woojin Kwon, wkwon(at) ], if you have something to share.

매 주 금요일에 진행되는 전파 콜로퀴움은 전파천문본부에서 일어나는 다양한 연구와 소식 등을 편안한 분위기에서 공유하는 자리입니다. 예를 들면, 흥미로운 연구 결과, 유용한 생활 정보, 최근 참여한 미팅 소개, 다가오는 미팅 발표 연습, 축하연 등을 위한 시간으로 활용 가능합니다. 장소는 세미나룸, 휴게실 등 상황에 따라 제안하실 수 있으며, 발표 언어도 한국어, 영어 모두 대환영입니다. 발표는 가능한 30분을 초과하지 않도록 준비해 주시면 됩니다. 이 시간을 활용하시고자 하시면 언제든 연락주시기 바랍니다. [권우진, wkwon(at) ]

Date일자 Contents제목
Title Two weeks at Greenland Telescope
Speaker Dr. Do-Young Byun (KVN)
Abstract Greenland telescope (GLT) is one of key stations of Event Horizon Telescope aiming at blackhole shadow imaging. Construction of GLT at Thule site was finished and commissioning operation started around last December.
Immediate goal of the commissioning is to make GLT ready for EHT campaign observations in this April. I visited GLT to support the commissioning and evaluation of VLBI backend ... more

Title Studies of Galactic Star Forming Regions
Speaker Dr. Neha Sharma (ARIES, India)
Abstract The nearby isolated molecular clouds are compelling laboratories to study the evolution of globules and various modes and processes of star formation. Star formation can proceed in two different ways: spontaneous and triggered.
In this talk, I will briefly describe our studies on the radiation-driven implosion (RDI) mode of triggered star formation using three different techniques: (1) map ... more

Title FOREST unbiased Galactic plane imaging survey with the Nobeyama 45 m telescope (FUGIN): Project overview and initial results
Speaker Dr. Tomofumi UMEMOTO (Nobeyama Radio Observaotry)
Abstract Recent improvement of surface accuracy of the Nobeyama 45-m Telescope and the new multi-beam receiver “FOREST” realized large-scale mapping observations with high sensitivity within a short time.
FOREST unbiased Galactic plane imaging survey with the Nobeyama 45 m telescope (FUGIN) project is one of the legacy projects using the Nobeyama 45-m Telescope and FOREST. This project ... more

Title Cosmological QUOKKA (Cosmological QUasar Observations on the KVN from Korea to Australia)
Speaker Dr. Sang-Sung Lee (KVN)
Abstract The aim of this project is to extend the measurements of cosmic distances compared to their redshifts (z) to z=6-7, allowing us to measure the expansion rate of the Universe back to the when the first galaxies formed and to directly study theenergy contributions of different components (Dark Energy, Dark Matter and normal matter) in the early universe.
We wish to observe well beyond the cu ... more

Title Spatially resolved origin of mm-wave linear polarization in the nuclear region of 3C 84
Speaker Mr. Jae-Young Kim (MPIfR)
Abstract Synchrotron radiation from AGN jets can be linearly polarized up to ∼70% in theory. However, the observed degree of linear polarization is usually much lower.
The weak linear polarization could to be due to (i) highly tangled magnetic fields in turbulent plasma, (ii) strong Faraday rotation, and (iii) blending of polarized sub-components within the beam. The bright radio-galaxy 3C 84 ( ... more

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Radio Astronomy Division in KASI