Selected Talks
Press conferences
1. Mar 2021 - Press Conference Presentation: “First M87 Event Horizon Telescope Results: Polarization of the Ring & Magnetic Field Structure near the Event Horizon”,
Academia Sinica Institute of Astronomy and Astrophysics,
Taipei, Taiwan, website
Invited talks
15. Nov 2023 - Invited Colloquium: “Observing the Supermassive Black Hole at the Center of M87 using EHT and GMVA+ALMA”,
Yonsei University Seoul, Republic of Korea, website
14. Aug 2023 - Invited Lecture: “Active Galactic Nuclei \& Supermassive Black Holes”,
2023 Radio Summer School Seoul National University, Siheung, Republic of Korea, website
13. Jun 2023 - Invited Colloquium: “Observing the Supermassive Black Hole at the Center of M87 using EHT and GMVA+ALMA”,
Kyung Hee University Yongin, Republic of Korea, website
12. May 2023 - Invited Colloquium: “Observing the Supermassive Black Hole at the Center of M87 using EHT and GMVA+ALMA”,
Korea Astronomy & Space Science Institute (KASI) Daejeon, Republic of Korea, website
11. Apr 2023 - Invited Talk: “Observing the Supermassive Black Hole at the Center of M87 using EHT and GMVA+ALMA”,
2023 107th KAS Spring Meeting Lahan Hotel JeonJu, JeonJu, Republic of Korea, website
10. Feb 2023 - Invited Talk: “The Magnetic Field Structure in the Jet Acceleration and Collimation Zone of M87”,
Black Hole Astrophysics with VLBI 2023 NAOJ, Mitaka, Tokyo, Japan, website
9. Aug 2022 - Invited Talk: “Collimation and Acceleration of AGN jets”,
Focus Meeting 1 “Physics of Relativistic Jets on All Scales” at the IAUGA 2022,
BEXCO, Busan, Republic of Korea, website
8. Jan 2022 - Invited Talk: “Polarization of the photon ring of M87*” (cancelled),
The 239th meeting of the Americal Astronomical Society (in the special session “New Views of Extragalactic Supermassive Black Holes with the Event Horizon Telescope”),
Salt Lake City, Utah, USA, website
7. May 2021 - Invited Colloquium: “Magnetic field structure near the event horizon of the M87 black hole.”,
Seoul National University,
Seoul, South Korea, website
6. Jan 2021 - Invited Talk: “Prospect of Polarization Observations of M87 with the EHT & Jet Collimation and Acceleration in the Giant Radio Galaxy NGC 315”,
Black Hole Astrophyusics with VLBI: Multi-Wavelength and Multi-Messenger Era,
Institute for Cosmic Ray Research, the University of Tokyo, Tokyo, Japan, website
5. Dec 2020 - Invited Colloquium: “Collimation and Acceleration of the M87 jet (and more)”,
National Tsing-Hua University (NTHU),
Hsinchu, Taiwan, website
4. Apr 2019 - Invited Talk: “Faraday Rotation in the Jet of M87 Inside the Bondi Radius: Indication of Winds from Hot Accretion Flows Confining the Relativistic Jet”,
EATING VLBI Workshop 2019
CNS Research Area, Bologna, Italy, website
3. Jan 2019 - Invited Seminar: “Faraday Rotation in the Jet of M87 Inside the Bondi Radius: Indication of Winds from Hot Accretion Flows Confining the Relativistic Jet”,
Academia Sinica Institute of Astronomy and Astrophysics (ASIAA),
Taipei, Taiwan, website
2. Jan 2018 - Invited Talk: “Substantial Outflows from Hot Accretion flows Confining the Relativistic Jet of M87”,
Dawn of a New Era for Black Hole Jets in Active Galaxies,
Tohoku University, Sendai, Japan, website (terminated)
1. Jan 2017 - Invited Talk: “Probing the Velocity Field in the Inner Region of M87 Jets with a KaVA Large Program: Early Science Results”,
Challenges of AGN Jets,
National Astronomical Observatory of Japan (NAOJ), Mitaka, Tokyo, Japan, website (terminated)
Contributed Talks
22. Nov 2023 - Contributed Talk: “Observational Evidence for a Dense Ambient Medium Shaping the Jet in 3C 84”,
14th East Asian VLBI Workshop,
Shanghai, China, website
21. Oct 2023 - Contributed Talk: “Observational Evidence for a Dense Ambient Medium Shaping the Jet in 3C 84”,
2023 108th KAS Fall Meeting,
Ramada Plaza Jeju, Jeju, Republic of Korea, website
20. Jun 2023 - Contributed Talk: “Searching for New Targets for the EHT & Faraday Synthesis of the M87 Jet”,
the extended KVN KSP workshop,
Korea Astronomy and Space Science Institute (KASI), Daejeon, Republic of Korea, website
19. Oct 2022 - Contributed Talk: “Collimation and Acceleration of AGN jets”,
2022 106th KAS Fall Meeting,
Lahan Select Kyung, Gyeongju, Republic of Korea, website
18. Sep 2022 - Contributed Talk: “Collimation and Acceleration of AGN jets”,
2nd Malaysia VLBI Workshop,
Universiti Malaya, Kuala Lumpur, Malaysia, website
17. Mar 2021 - Contributed Talk: “GPCAL: a new calibration pipeline for instrumental polarization in VLBI data”,
13th East Asian VLBI Workshop 2021,
Chiang Mai, Thailand, website
16. Jan 2021 - Contributed Talk: “Kinematics of the M87 Jet in the Collimation Zone: Gradual Acceleration and Velocity Stratification”,
COSPAR 2021, 43rd COSPAR Scientific Assembly,
Sydney, Australia, website
15. Dec 2020 - Contributed Talk: “Preliminary reduction of the 2018-Rev0 data”,
The Event Horizon Telescope Collaboration Meeting 2020,
Virtual meeting, website (invitation-only)
14. Jan 2020 - Colloquium: “Acceleration and Collimation of the M87 Jet”,
Academia Sinica Institute of Astronomy and Astrophysics (ASIAA),
Taipei, Taiwan, website
13. Dec 2019 - Contributed Talk: “Kinematics of the M87 jet in the collimation zone: gradual acceleration and velocity stratification”,
The Event Horizon Telescope Collaboration Meeting 2019,
Naniloa Hotel, Hilo, Hawaii, USA, website (invitation-only)
12. Dec 2019 - Contributed Talk: “M87 Polarization and RM at low frequencies”,
The Event Horizon Telescope Collaboration Meeting 2019,
Naniloa Hotel, Hilo, Hawaii, USA, website (invitation-only)
11. Sep 2019 - Contributed Talk: “A new strategy for polarization calibration of VLBI data and an improved view of linear polarization of AGN jets at millimeter wavelengths”,
12th East Asian VLBI Workshop,
Ibaraki University, Mito, Ibaraki, Japan, website
10. Oct 2018 - Contributed Talk: “Substantial Winds from the accreting supermassive black hole in M87 revealed by Faraday rotation observations”,
14th European VLBI Network Symposium & Users Meeting,
Granada, Spain, website
9. Sep 2018 - Contributed Talk: “Detection of a Moving Spine-Sheath Jet Structure after a VHE γ-ray Flare in PKS 1510-089 in 2015”,
East Asian VLBI Workshop 2018,
YongPyong Resort, PyeongChang, Korea, website
8. May 2018 - Contributed Talk: “Substantial Winds from Hot Accretion flows Confining the Relativistic Jet of M87”,
IAU Symposium 342 – Perseus in Sicily: from Black Hole to Cluster Outskirts,
Noto, Sicily, Italy, website
7. Oct 2017 - Contributed Talk: “Revealing the Nature of Blazar Radio Cores through Multi-Frequency Polarization Observations with KVN”,
East Asia To Italy: Nearly Global (EATING) VLBI Workshop 2017,
Hotel Bareve, Jeju, Korea, website
6. Aug 2017 - Colloquium: “Revealing the Nature of Blazar Radio Cores through Multi-Frequency Polarization Observations with KVN and ALMA”,
Korea Astronomy and Space Science Institute (KASI),
Daejeon, Korea, website (terminated)
5. Jun 2017 - Contributed Talk: “Revealing the Nature of Blazar Radio Cores through Multi-Frequency Polarization Observations with KVN”,
When Brandeis met Jansky: Astrophysics and beyond,
Brandeis University, Boston, USA, website
4. Nov 2016 - Contributed Talk: “Probing the Velocity Field in the Inner Region of M87 Jets with a KaVA Large Program: Early Science Results”,
9th East Asian VLBI Workshop,
Forest Moon Hotel, Guiyang, Guizhou, China, website (terminated)
3. Sep 2016 - Contributed Talk: “Probing the Velocity Field in the Inner Region of M87 Jets with a KaVA Large Program: Early Science Results”,
East-Asia AGN Workshop 2016,
Seoul National University, Seoul, Korea, website
2. Jul 2015 - Contributed Talk: “The plasma physics of Active Galactic Nuclei (PAGaN) : Polarimetry with KVN”,
8th East Asian VLBI Workshop,
Hokkaido University, Sapporo, Hokkaido, Japan, website
1. Aug 2014 - Contributed Talk: “Radio Variability and Random Walk Noise Properties of Four Blazars”,
12th Asia-Pacific Regional IAU Meeting (APRIM),
DCC, Daejeon, Korea, website (terminated)