Perseus in Sicily (IAU S342) From Black Hole to Cluster Outskirts

Perseus is an outstanding case in which to study the physics of relativistic plasma and thermal gas, and the interplay between galactic nuclei and galaxy clusters. Ground and space observatories have recently provided some ground-breaking insights into the Perseus system, from a detailed image of a jet launched in the vicinity of a supermassive black hole, through VLBI, to an unexpected degree of turbulence in the cluster core, constrained by high energy resolution in x-rays. While preparing for the next generation observatories that will allow readers to address these questions in other systems, this volume provides some first steps in exploring topics relating to particle acceleration, energy transport between large and small scales and the role of magnetic fields in the launch of relativistic jets. Chapters deal with the latest results covering theory, observations, and numerical simulations, spanning a wide range in physical scales and energy ranges.

Preface; Editors; Participants; Black hole mass measurements in AGN: Polarization in broad emission lines; Fully analytical solutions for Bondi accretion in galaxies with a central Black; Modelling the polarised emission from black holes on event horizon-scales; Particle acceleration and the origin of the very high energy emission around black holes and relativistic jets; Numerical methods for general relativistic particles; On the prospects of imaging Sagittarius A* from space; The Hot Universe with XRISM and Athena; Low frequency observations of radio relics and halos; Probing the non-thermal emission in the Perseus cluster with the JVLA; High-dynamic-range 21 cm JVLA observations of the Perseus Cluster; A wide and collimated radio jet in 3C 84; Extragalactic relativistic jets; Inflow and outflow (Jets) in NGC 1275; Observations of nearby relativistic jets with EAVN and EATING VLBI; Molecular gas filamentary structures in galaxy clusters; Young radio jets breaking free: molecular and HI outflows in their centers; Ultrafast outflows, and their connection to accretion and ejection processes in AGNs; AGN feedback and the origin and fate of the hot gas in early-type galaxies; Numerical study of active galactic nucleus feedback in an elliptical galaxy with MACER; Prodigious and continuous formation of super star clusters from cooled intracluster gas; Characterizing the outburst of the supermassive black hole in M87; X-ray probing of NGC 1275 nuclear region with Hitomi, Swift, and Suzaku; Life-cycles and energetics of radio-loud AGN; Deep Chandra observations of the core of the Perseus cluster; Close-up view of an ongoing merger between the NGC 4839 group and the Coma cluster; Thermal and non-thermal connection in radio mini-halos; Perseus: a huge reservoir of dark matter investigated with MAGIC; The AGN dependence on cluster mass; AGN jets, bubbles, and heat pumps; Intermediate-mass black hole feedback in dwarf galaxies: a view from cosmological simulations; Gamma-ray emission in radio galaxies, from MeV to TeV; Search for QPOs in Perseus with Fermi LAT; High energy ?-ray variability of NGC 1275 and 3C 120; Young radio sources at high-energies and the ?-ray CSO PKS 1718-649; Exploring the radio and GeV-TeV ?-ray connection in the different blazar sub-classes; Neutrino and ?-ray emission from the core of NGC1275 by magnetic reconnection: GRMHD simulations and radiative transfer/particle calculations; Magnetic fields in the relativistic jets of active galactic nuclei; The correlation between the total jet power and the Poynting flux at the jet base; Why only a small fraction of quasars are radio loud?; Ratio of kinetic-to-bolometric luminosity at the 'cold' disk accretion onto black holes; Emission modelling of hydrodynamic AGN jet simulations; The wind production from black hole hot accretion flow; Radio-loud AGNs with peculiar shape of hard X-ray spectrum: figuring out the reasons; Expanding radio lobe associated with 3C 84; Chandra view on the active nucleus of CGCG292-057: Jet-ISM interactions; Preliminary analysis of the X-ray emission from the central regions of the Pictor; Flip of the jet head position of 3C 84 in 2015; AGN and star formation feedback in galaxy outflows; Update on the multi-frequency monitoring of blazars with Medicina and Noto; Hints of radio sources evolution; Bending of the pc scale jet in 3C84; Chandra early-type galaxy atlas; Probing the B-fields of AGN jets on kiloparsec scales – NGC 6251; External blob radiation model for the TeV gamma-ray emission in radio galaxies; A negative correlation between RUV and aOX in low-luminosity AGNs; A precessing and nutating jet in OJ287; A jet proper motion study in the early Universe; Evolution of the M• - s relation; Simulations of the W50-SS433 system; Black hole demographics from TDE modeling; Multi-frequency monitoring of S5 0716+714; Survival of populat