Dr. Stephane Blondin

Profile

Academic positionAssociate Professor, Senior Lecturer, Reader
Research fieldsAstrophysics and Astronomy
Keywordsgravitational wave sources, radiative transfer, Supernovae and transient objects, spectral analysis algorithms, observational cosmology

Current contact address

CountryFrance
CityMarseille CEDEX 13
InstitutionAix-Marseille Universite

Host during sponsorship

Prof. Dr. Bruno LeibundgutOffice for Science, Europäische Südsternwarte (ESO), Garching
Start of initial sponsorship01/01/2023

Programme(s)

2022Friedrich Wilhelm Bessel Research Award Programme

Nominator's project description

Dr. Blondin is internationally recognized for his seminal contributions to the physics of stellar explosions and their use in cosmology. He demonstrated how cosmic time dilation, a prediction of General Relativity, works in the evolution of very distant supernovae. Dr. Blondin also provides deep insight into stellar thermonuclear explosions and how light emerges from these cosmic cauldrons. In Germany, he contributes to a project to measure the cosmic expansion rate with supernovae

Publications (partial selection)

2025Blondin, S.: Type Ia supernovae. In: Ilya Mandel, Jeffrey Andrews, Encyclopedia of Astrophysics. Elsevier, 2025.
2024Kwok, L. et al.: Ground-based and JWST Observations of SN 2022pul: II. Evidence from Nebular Spectroscopy for a Violent Merger in a Peculiar Type-Ia Supernova. In: The Astrophysical Journal, 966, 2024, 135
2024Siebert, M. et al.: Ground-based and JWST Observations of SN 2022pul: I. Unusual Signatures of Carbon, Oxygen, and Circumstellar Interaction in a Peculiar Type Ia Supernova. In: The Astrophysical Journal, 960, 2024, 88
2023Blondin, S., Dessart, L., Hillier, D. J., Ramsbottom, C. A., Storey, P. J.: Nebular spectra from Type Ia supernova explosion models compared to JWST observations of SN 2021aefx. In: Astronomy and Astrophysics, 678, 2023, A170
2023Csörnyei, G. et al.: Reeling in the Whirlpool: the distance to M 51 clarified by Cepheids and the Type IIP SN 2005cs. In: Astronomy and Astrophysics, 678, 2023, A44