Ilje Cho
Kyungpook National University, Yonsei University, Korea University of Science and Technology, Korea Astronomy and Space Science Institute
Research areas: Physics and Astronomy · Nuclear and High Energy Physics · Particle physics theoretical and experimental studies · Quantum Chromodynamics and Particle Interactions · Particle Detector Development and Performance
0000-0001-6083-7521
About
Research Interests
• Supermassive black holes (SMBHs) at the center of active galactic nuclei (AGN)
– Black hole accretion flow and jet physics
– AGN feedback on its environments and host galaxy
– The intermediate-mass black holes
• Radio astronomy with the very long baseline interferometry (VLBI)
– High-resolution imaging of the SMBHs and the AGN jets
– VLBI astrometry & polarimetry
• Software development
- VLBI data calibration and analysis pipeline
- Imaging, Big data and Machine learning algorithms
Employment
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Kyungpook National University Assistant Professor2026 - Present
- 2023 - 2025
- 2023 - 2025
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Instituto de Astrofísica de Andalucía Postdoctoral Researcher2021 - 2023
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Korea Astronomy and Space Science Institute PhD research2014 - 2021
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Cook San Francisco, LLC, Nona Lim Internship2013 - 2013
Education
- 2014 - 2021
- 2014 - 2021
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Kyungpook National University Bachelor's degree2007 - 2014
Projects & Funding
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UST Overseas Exchange Program University of Science and Technology2018 - 2018
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Global PhD Fellowship National Research Foundation of Korea2015 - 2020
Publications (72)
- The 2015–2017 Large EVPA Rotation in OJ 287: Dominant Propagating Component in a Helical Magnetic Field with Time-dependent Viewing Geometry Save
- Spatially resolved polarization swings in the supermassive binary black hole candidate OJ 287 with first Event Horizon Telescope observations Save
- Revealing a ribbon-like jet in OJ 287 with RadioAstron Save
- Origin of the ring ellipticity in the black hole images of M87* Save
- Helical magnetic field structure in 3C 273 Save
- Evolution, speed, and precession of the parsec-scale jet in the 3C 84 radio galaxy Save
- Unveiling the bent-jet structure and polarization of OJ 287 at 1.7 GHz with space VLBI (Corrigendum) Save
- Discovery of Limb Brightening in the Parsec-scale Jet of NGC 315 through Global Very Long Baseline Interferometry Observations and Its Implications for Jet Models Save
- Unveiling the bent-jet structure and polarization of OJ 287 at 1.7 GHz with space VLBI Save
- Lost in the curve: Investigating the disappearing knots in blazar 3C 454.3 Save
- Ordered magnetic fields around the 3C 84 central black hole Save
- The persistent shadow of the supermassive black hole of M 87. I. Observations, calibration, imaging, and analysis Save
- A search for pulsars around Sgr A* in the first Event Horizon Telescope dataset Save
- First M87 Event Horizon Telescope Results. IX. Detection of Near-horizon Circular Polarization Save
- Polarimetric Geometric Modeling for mm-VLBI Observations of Black Holes Save
- Filamentary structures as the origin of blazar jet radio variability Save
- Precessing jet nozzle connecting to a spinning black hole in M87 Save
- Comparison of Polarized Radiative Transfer Codes Used by the EHT Collaboration Save
- Spectral analysis of a parsec-scale jet in M 87: Observational constraint on the magnetic field strengths in the jet Save
- Monitoring the Size and Flux Density of Sgr A* during the Active State in 2019 with East Asian VLBI Network Save