Sebastien Celestin, Ph.D.

Professor of Physics

University of Orleans, France

Laboratory of Physics and Chemistry of the

Environment and Space (LPC2E)


3A avenue de la Recherche Scientifique

45071 Orleans Cedex 2


Ph: +33 2 38 25 79 83


Research interests

Atmospheric electrodynamics: transient luminous events (sprites, blue and gigantic jets), non-equilibrium plasmas (such as streamer discharges) and their role in the generation of energetic electrons leading to production of X-rays and gamma-rays in the framework of terrestrial gamma-ray flashes and energetic radiation from lightning. Relativistic runaway electron avalanches and thermal runaway processes are rich and challenging problems involving a very broad range of energy. They represent a crossover between non-equilibrium plasma physics and high-energy physics.

Recent publications

Garnung, M. B., S. Celestin, and T. Farges, 2021, HF-VHF electromagnetic emissions from collisions of sprite streamers, J. Geophys. Res., 126, e2020JA028824 DOI: 10.1029/2020JA028824

Pallu, M., S. Celestin, F. Trompier, and M. Klerlein, 2021, Estimation of radiation doses delivered by terrestrial gamma ray flashes within leader-based production models, J. Geophys. Res., 126, e2020JD033907 DOI: 10.1029/2020JD033907

Celestin, S., N. L. Berge, B. G. Mailyan, and M. S. Briggs, 2020, Geomagnetic deviation of relativistic electron beams producing terrestrial gamma ray flashes, J. Geophys. Res., 125, e2020JA027936 DOI: 10.1029/2020JA027936

Xu, C., Huret, N., Garnung, M., and Celestin, S., 2020, A new detailed plasma-chemistry model for the potential impact of blue jet streamers on atmospheric chemistry. J. Geophys. Res., 125, e2019JD031789 DOI: 10.1029/2019JD031789

Berge, N., and Celestin, S., 2019, Constraining downward terrestrial gamma ray flashes using ground-based particle detector arrays, Geophys. Res. Lett., 46, 8424, DOI: 10.1029/2019GL083252

Xu, W., S. Celestin, V. P. Pasko, and R. A. Marshall, 2019, Compton Scattering Effects on the Spectral and Temporal Properties of Terrestrial Gamma-ray Flashes, J. Geophys. Res., 124, 7220, DOI: 10.1029/2019JA026941

Mailyan, B. G., W. Xu, S. Celestin, M. S. Briggs, J. R. Dwyer, E. S. Cramer, O. J. Roberts, and M. Stanbro, 2019, Analysis of individual terrestrial gamma-ray flashes with lightning leader models and Fermi Gamma-ray Burst Monitor data, , J. Geophys. Res., 124, 7170, DOI: 10.1029/2019JA026912

Professional Activities and Membership

Chair of the Commission G of URSI-France

Member of the CNES Thematic Group Sun-Heliosphere-Magnetosphere (SHM)

Member of the International Union of Radio Science (URSI), Commissions E, G, and H.

Member of the European Geosciences Union

Member of the American Geophysical Union