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Astronomy Colloquium (2016 Spring Semester)

* Date
June 21
* Speaker
A. Gopakumar, (Tata Institute of Fundamental Research, Mumbai, India)
* Title
Sub-micro Hz gravitational waves, TAPTA and OJ287 
* Abstract

 

The first official ‘observing run’ of the advanced LIGO detectors in the USA ensured the emergence of gravitational wave astronomy.

The operational Pulsar Timing Arrays (PTAs) promise to open up the complementary sub-micro Hz GW frequency window involving supermassive black hole binaries in the near future.

A beginner’s perspective on PTAs and our nascent experimental and theoretical efforts in this exciting area will be presented.

Additionally, we will explain how a recent observational campaign allowed us to confirm the presence of an inspiralling  and spinning supermassive black hole binary in blazar OJ287.

DateSpeakerTitleRemarks
March 3Prof. Jeongwoo Lee (SNU)Recent Progress in Plasma Astrophysics 
March 10Dr. Woojin Kwon (KASI)Protoplanetary Disks Revealed by Millimeter Interferometers 
March 17Dr. Kwangsu Ahn
(Big Bear Solar Observatory)
Introduction to the New Solar Telescope and its Instruments: Focusing on the Fast Imaging Solar Spectrograph and the Near-IR Imaging Spectropolarimeter 
March 22Prof. Hyung-Mok Lee (SNU)New Window for Astronomy: Gravitational Waves
Tuesday, Special Seminar
March 24Dr. Kwangho Park
(Georgia Tech)
Growth of Seed Black Holes
 
March 31이기형 회장
(인터파크/카오스재단)
과학을 사랑하면 꼭 (과학과) 결혼해야 하나요?
(500동 1층 목암홀에서)
자연대 명사 초청 강연 행사와 공동으로 진행 (500동 1층 목암홀)
April 7Prof. Kimitake Hayasaki
(Chungbuk National Univ.)
Accretion Disk formation following tidal disruption of stars on bound orbits around spinning supermassive black holes 
April 14 한국천문학회 
April 21이용복 교수
(소남천문학사 연구소장)
Almanac during Joseon Dynasty and Reliability of Astronomical Records in the Korean Ancient historical BooksSpeech
in Korean
April 28Dr. Hyunbae Park
(KASI)
RECOMBINATION IN SMALL-SCALE STRUCTURES DURING THE COSMIC REIONIZATION 
May 3Dr. David Silva
(NOAO)
NOAO Today and TomorrowTuesday
May 12Prof. Elena Gallo
(Univ. Michigan)
X-ray constraints on the local super-massive black hole occupation fraction
 
May 19Prof. Myungkook James Jee
(Yonsei Univ.)
The Magic of Gravitational Lensing and Its Application to Dark Matter Studies 
May 26 No Colloquium 
June 2Prof. Paul Yun
(NASA Solar System Ambassador)
NASA Mars Missions 
June 21A. Gopakumar,
(Tata Institute of Fundamental Research, Mumbai, India)
Sub-micro Hz gravitational waves, TAPTA and OJ287Tuesday
(14:30)
July 11Dr. Vivien Raymond
(AEI-MPI)
Astrophysical inference from gravitational-wave observations of compact binaries with Advanced LIGOMonday
(4pm)