Teaching

fostering curiosity and critical thinking

Teaching philosophy

Over the years, I've taught a wide range of subjects—from physics and astronomy to statistics and cosmological simulations—across all levels, in both French and English. Since 2021, I've designed and taught courses spanning general physics, astronomy for undergraduate non-science majors, and statistics, cosmology, and instrumentation for astrophysics graduate students. I've also led hands-on workshops on cosmological simulations, including invited sessions at Kyunghee University, the Pyeongchang Summer Institute, and the Indian Institute of Astrophysics in Bangalore.

What began during my PhD at Université Paris Diderot—where I led tutorials in physics and Earth science data analysis—has grown into a deeper investment not just to train future researchers, but to share a way of thinking: curious, analytical, open to uncertainty, and rooted in evidence. I see teaching as a way to foster habits of inquiry that help students ask better questions, challenge assumptions, and think more clearly about the world around them. In turn, it sharpens my own thinking and often brings fresh perspectives that feed back into my research.

Mathematics, statistics & data analysis

2008 →

  • Astronomical Data Analysis (graduate; Spring 2021, Fall 2025): probability, Bayesian inference, MCMC, regression and Fourier methods, in Python.
  • Mathematical Physics I (undergraduate; Spring 2025, Spring 2026; course materials on GitHub) and Mathematical Physics II (Fall 2025).
  • Mathematical Astronomy (graduate; Fall 2022, Spring 2024).
  • “Gaussian Process by Example”, invited lecture, STAR Summer School 2025, Indian Institute of Astrophysics (online).
  • Data analysis with MATLAB, teaching assistant, first-year Master’s, Université Paris Diderot (2008–2011): frequency analysis, statistics, least squares, wavelets.

Courses at Sejong University

Since 2021

Graduate school

  • Stellar Dynamics and GravitationNow
  • Astronomical Data AnalysisSpring 2021 · Fall 2025
  • Mathematical AstronomyFall 2022 · Spring 2024
  • Advanced Astronomical InstrumentationFall 2023
  • CosmologyFall 2021

Undergraduate

  • Gravitation and General RelativityNow
  • Mathematical Physics ISpring 2025 · Spring 2026
  • Mathematical Physics IIFall 2025
  • Physics of Everyday LifeFall 2024
  • General Physics ISpring 2022 · Spring 2023 · Spring 2024
  • Introduction to AstronomyFall 2023

Student supervision

I am always happy to work with motivated students.

Current graduate students

  • Sept. 2026 → now — Si Hyeong Noh, PhD (M.Sc. 2023–2025, weak-lensing cosmology)
  • Sept. 2024 → now — Cléa Millard, PhD: Type Ia supernova cosmology
  • 2023 → now — Hyeon Kim, integrated Master–PhD: N-body simulations

Former students

  • 2019 → 2025 — Seung-gyu Hwang: M.Sc. at Yonsei (2019–2021), then post-Master researcher at Sejong (2022–2025). Gaussian process regression in cosmology. Now a PhD student at CosmoStat, CEA Saclay

Research projects and internships

  • Sept. 2026 → now — Kangsoo Lee (Sejong, senior undergraduate)
  • Sept. 2026 → now — Mathias Tan (Master's, CentraleSupélec): cosmological applications of optimal transport
  • Spring 2026 — Tarik Ouadjou (CentraleSupélec, co-supervised with A. Rimmel), Ussan Abbassi (ENS Paris), Edwyn Howarth (Sorbonne)
  • Summer 2023 — Manal Ikram Bensahli (ESTACA, undergraduate): information theory and Fermi light curves
  • Spring 2023 — Cléa Millard (Master's, Strasbourg): Type Ia supernova cosmology
  • 2022 → 2023 — David Fernández Gil (post-Master project, co-supervised with J. Hodgson): alignment of AGN jets and their host galaxies, published in Nature Astronomy
  • 2021 → 2022 — Seokhyeon Yoo and Hyeon Kim (Sejong undergraduates): cosmological probes
  • Summer 2019 — Sohee Chun (Emory): Type Ia supernova cosmology
  • Summer 2017 — Hyungjin Kim (Master's, Waterloo, co-supervised): redshift-space distortions and supernovae to constrain gravity

Invited lectures

2013 →

  • July 2025 — “Gaussian Process by Example”, STAR Summer School 2025, Indian Institute of Astrophysics (online).
  • June 2023 — Cosmology, Summer School on Theoretical Physics, Institute of Physics and Technology, Mongolian Academy of Sciences (online).
  • Nov. 2015 — Cosmological simulations for PhD candidates, Indian Institute of Astrophysics, Bangalore: theory and hands-on session with Gadget-2 (8 hours).
  • July 2015 — Pyeongchang Summer Institute: tutorials on cosmological N-body simulations with GOTPM — initial conditions, running, visualising and analysing (4 hours).
  • Nov. 2013 — Lecture on cosmological simulations for undergraduate astronomy students, Kyunghee University, Suwon.

Teaching Assistant, Université Paris Diderot

2008 – 2011

Physics

  • 2010–2011 — Tutorials, first-year BSc (L1), with François Vannucci: hydrostatics, hydrodynamics, kinematics.
  • 2009–2010 — Tutorials, first-year BSc (L1), with Sébastien Charnoz: hydrostatics, hydrodynamics, energy.
  • 2008–2009 — Experimental work in mechanics.

Data analysis in Earth science

  • 2008–2011 — Computing tutorials in data analysis with MATLAB, first-year Master's (M1) in Earth Science, with Olivier de Viron: frequency analysis, statistics, least-squares methods, wavelets.