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Astronomy Colloquium (2019 Fall Semester)

* Date
Oct. 10
* Speaker
Dr. Michiel van Noort (Max-Planck Institute for solar system research),
* Title
Image restoration of solar data using multi frame blind deconvolution
* Abstract
 

 

When observing the Sun using ground based solar telescopes, atmospheric turbulence, resulting from heating of the Earths atmosphere by the Sun, causes severe blurring of image data in the spatial dimensions. In spite of tremendous progress made in the development of adaptive optics (AO) systems to correct telescope images for this effect, residual image degradations remain a significant factor, limiting the spatial resolution that can be achieved. Multi-Frame Blind Deconvolution (MFBD) is one of a family of numerical techniques that model and remove these residual image degradations, allowing observers to increase the amount of information they can extract from their data.
In this talk, I will introduce the basic ideas behind MFBD, and describe how recent increases in the available computing resources to the solar physics community has helped to broaden the application area of this technique, how this can be used to enhance traditional observing techniques, and in what way this is driving the design of new instrumentation.
DateSpeakerTitleRemarks
Sept 04
(Wednesday)
Dr. Bomee Lee (Caltech)Probing the nature of dark matter through measurements of galaxy shapesWednesday
Sept. 12No Colloquium추석연휴 
Sept. 19.권오철 작가님우주에 대한 호기심이 영화가 되기 까지 
Sept. 26Prof. Jongchul Chae (SNU)Three-minute Umbral Oscillations in Sunspots [태양흑점의 3분 암부진동] 
Oct. 2Dr. Jeongwoo Lee (New Jersey Institute of Technology/ ISS, Shandong Univ.)EUV and Microwave Studies of a Circular-Ribbon Solar Flare
Wednesday
Oct. 10Dr. Michiel van Noort (Max-Planck Institute for solar system research),Image restoration of solar data using multi frame blind deconvolution 
Oct. 17No ColloquiumKorean Astronomical Society Meeting 
Oct. 24Dr. Jongwan Ko (KASI)Finding the origin of intracluster lightTalk in Korean
Oct. 31Dr. Bernd Husemann (MPIA)Characterizing multi-phase gas outflows and their powering mechanism in nearby AGN 
Nov. 7Prof. Hirofumi NODA (OSAKA Univ.)Structure and State Transition of Supermassive Black Hole Accretion Flow Studied by Multi-Wavelength Observations 
Nov. 14Dr. Jinhee Lee (Kyung Hee Univ.)Introduction to nearby young stellar moving groups 
Nov. 21Dr. Nobuyuki Sakai (KASI)Mapping the Milky Way with Astrometry 
Nov. 28박새별 (KAIST / 안테나뮤직)예술과 과학의 상호작용- 문화기술(Culture Technology)의 이해와 가능성 
Dec. 5Dr. Do-Young Byun (KASI)The Extended KVN ProjectTalk in Korean
Dec. 27.Prof. Paul Yun, NASA Solar System AmbassadorNASA Space Economy
11:00 AM