Camille Poitras (Université Laval) - From Jet to Filaments: a Multi-Scale and Multi-Wavelength View of AGN Activity in M87

Active galactic nuclei (AGN) can launch relativistic jets that inject and redistribute energy into their surroundings. As the nearest brightest cluster galaxy in a cool-core cluster, M87 provides a unique laboratory to study these processes in detail. In this talk, I will first present new results on the temporal evolution of its well-known jet in X-rays with Chandra HRC-I. Combining sub-arcsecond imaging, advanced PSF deconvolution, and a 13-year baseline (2012–2025), we obtain an unprecedented view of the jet morphology and variability. The X-ray jet shows structures similar to those seen with HST and JWST, while also revealing evolving substructures with transverse variations, stationary and superluminal proper motions, and flux changes. On larger scales, jet-driven energy shapes the extended warm filamentary nebula in M87. Using new integral-field spectroscopy observations from MEGARA (GTC) and SITELLE (CFHT), we provide the first complete views of its kinematics and excitation across the entire network. The gas exhibits turbulent motions and AGN-dominated excitation and shows strong coupling to both the cold molecular phase and the cooler component of the hot intracluster medium. Together, these results provide new insight into AGN feedback across spatial scales, wavelengths, and timescales.