Marianne Lemoine-Goumard is a Research Director at CNRS at the Laboratoire de Physique des 2 Infinis de Bordeaux (LP2i Bordeaux), where she leads a research group dedicated to studying the origin and acceleration of cosmic rays in the Milky Way. A specialist in high-energy astrophysics, her research focuses on the origin and acceleration of cosmic rays in the Milky Way through the study of supernova remnants, pulsar wind nebulae, and stellar clusters. She is an active member of the international collaborations Fermi-LAT (NASA), H.E.S.S., CTAO, and SWGO, which explore the gamma-ray sky to understand the most energetic processes in the Universe.

In 2023, she received the Friedrich Wilhelm Bessel Award from the Alexander von Humboldt Foundation for her outstanding contributions to high-energy physics. As part of this recognition, she carried out a research stay at the Max Planck Institute for Nuclear Physics (MPIK) in Heidelberg to advance multiwavelength studies of galactic gamma-ray-emitting sources.

The main objective of her visit to the Instituto de Astrofísica de Canarias (IAC) is a project aimed at performing the most precise multiwavelength spatial and spectral analysis of the supernova remnant SNR RX J1713.7−3946, covering energies from X-rays to very high-energy gamma rays. This work will test diffusive shock acceleration models and will be essential for preparing the scientific proposal for the Cherenkov Telescope Array Observatory (CTAO).

In addition, this collaboration includes the study of the supernova remnant Cassiopeia A (Cas A) using data from the Fermi-LAT telescope, with the goal of characterizing the halo and the spectral break recently identified by the LHAASO observatory. These studies will contribute to a deeper understanding of particle acceleration and diffusion processes in the most extreme environments of our galaxy.