Awards

Individual

• 2024 | Young Astronomers Award from the Korean Astronomical Society

• 2020 | Otto Hahn Medal from the Max Planck Society

• 2014 | "Rising Star" award (샛별상) from the Korean Astronomical Society

• 2013 | Award from the president of the SNU Alumni Association for SNU honor graduates
  
  

Group awards

• 2025 | Frontiers of Science Award by the International Congress of Basic Science (as member of the Event Horizon Telescope collaboration)

• 2021 | Group Achievement Award of the Royal Astronomical Society (as member of the Event Horizon Telescope collaboration)

• 2020 | Nelson P. Jackson Aerospace Award (as member of the Event Horizon Telescope collaboration)

• 2020 | the Bruno Rossi Prize 2020 of the American Astronomical Society (as member of the Event Horizon Telescope Collaboration)

• 2019 | NSF Diamond Achievement Award (as member of the Event Horizon Telescope Collaboration)

• 2019 | Smithsonian American Ingenuity Award 2019 Physical Sciences (as member of the Event Horizon Telescope Collaboration)

• 2019 | Breakthrough Prize for Fundamental Physics by the Breakthrough Foundation (as member of the Event Horizon Telescope Collaboration)
  
  
  

Grants

• 2022-2027 |  "Observational study of black hole jet launching and gamma-ray radiation mechanisms at event-horizon-scales", 507,880,000 KRW from the National Research Foundation (NRF) of Korea (우수신진연구); 

• 2022-2024 |  "Astronomical Research using Large Radio Telescopes",  420,000,000 KRW, awareded by the NRF of Korea to a group of astronomers from in total of seven institutes and universities (Chosun Univ., Chungnam Natl Univ., Sejong Univ. (PI inst.), Korea Astronomy and Space Sci. Inst., Kyungpook Natl Univ. (JYKim as representing co-I), Ulsan Natl Inst. of Science and Technology, Yonsei Univ.) (해외대형연구시설활용연구지원사업)

• 2022-2023 | "Support for First Innovation Labs", 80,000,000 KRW from the NRF of Korea (우수신진연구 최초혁신실험실 지원)

• 2023-2024 | Korea-EU ERC researcher exchange program, 7,000,000 KRW from the NRF of Korea (한-EU(ERC) 연구자교류협력)

• 2024 |  Individual research grant, 15,000,000 KRW from the Dongil Cultural Scholarship Foundation (동일문화장학재단)

• 2025-2027 | KASI Contract Project (한국천문연구원 위탁사업)
  
  
  

Specific research interests

• Science cases | Supermassive black holes (SMBHs), accretion and outflow physics in compact objects, radio astronomy, high energy astrophysics, multi-wavelength and multi-messenger astrophysics, co-evolution between SMBHs and galaxies, tests of general relativity, 21cm cosmology

• Methods (instrumentation & algorithms) | Interferometry, interferometric imaging and analysis algorithms, broadband polarimetry and spectroscopy, high dynamic range imaging, timeseries and broadband SED modeling, machine learning and deep learning techniques, millimeter/meter-wavelength instrumentation, application of advanced computing modules to astronomy (e.g., FPGA)
  
  

International Collaborations

• Since 2016 | The Event Horizon Telescope (EHT) collaboration
  (member of Science Board of the EHT Collaboration since 2024, co-coordinator of the AGN Science Working Group 2022-2024)

• Since 2021 | Square Kilometer Array-Korea (SKA-Korea) core member

• Since 2024 | Square Kilometer Array VLBI Working Group (SKA VLBI WG) associate member

• Since 2016 | The Polarimetric Monitoring of AGN at Millimeter Wavelengths (POLAMI) using the IRAM 30m telescope (PI : Dr. Ivan Agudo)

• Since 2019 | RadioAstron (space-VLBI) AGN Science Working Group

• Since 2015 | Global 3mm VLBI monitoring of gamma-ray emitting AGNs
  (PIs : Prof. Alan P. Marscher & Thomas P. Krichbaum)

• Since 2016 | Interferometric Monitoring of Gamma-ray Bright AGNs (iMOGABA) using the Korean VLBI Network (PI : Sang-Sung Lee)

• Since 2021 | The next-generation Event Horizon Telescope (ngEHT) collaboration, jet & accretion Science Working Group
  
  
  

Services

• A member of the Science Review Panel of the National Radio Astronomy Observatory (NRAO) and Green Bank Observatory (GBO) of the US (2022-2024)

• Science Board member of the Event Horizon Telescope Collaboration (2024-2026)

• Co-coordinator of the AGN Science Working Group of the Event Horizon Telescope Collaboration (2022-2024)

• Contributions to the next-generation EHT accretion and jet launching SWG (2020)

• External Large Program reviewer (Science Assessor for Galaxies and galactic nuclei) and Distributed Peer Reviews for the Atacama Large Millimeter/submillimeter Array (ALMA) (since 2019)

• Proposal review for the Korean VLBI Network (KVN) and JCMT (since 2022)

• Advisor roles and evaluation committee member for various PhD students (since 2019)

• Reviewer for Nature, ApJ, MNRAS, JKPS, PKAS, MDPI and internal reviewer for various publications from large collaborations (since 2018)

• Reviewer for National Research Council of Science and Technology (NST) and National Research Foundation of Korea (NRF) (since 2022)

• SOC member of various large international (e.g., IAU Symposium, COSPAR) and domestic meetings/conferences