Electronic proceedings of the Polish-German WE Heraeus Seminar "The Variable Multi-Messenger Sky" Kraków, November 7-11, 2022

• Program and presentations
• List of presenters and talks

Opening session M. Jorda The WE-Heraeus Foundation W. Hofmann The variable multi-messenger sky: Opportunities, challenges, tools   I. Transient MWL Sky Low-frequency (radio & optical) domain E. Ros Mapping magnetic fields around supermassive Black Holes S. Gillessen General relativistic effects around the galactic center black hole D. Champion Transients in the dynamic radio sky S. Kozłowski The optical variability of AGN L. Wyrzykowski Studying the population of galactic black holes with microlensing A. Szary FRBs - a short review D. Meyer Core collapse supernova remnants A. Bartkiewicz An overview about masers in high-mass star-forming regions, a need for high quality counterpart data   I. Transient MWL Sky X-ray and gamma-ray domain S. Casanova HAWC and LHAASO results, including the variable sources A. Timokhin Recent advances in understanding pulsar emission mechanisms A. Zdziarski Jets in black-hole binaries A. Wierzcholska Is PKS 2155-304 the most exceptional VHE blazar? G. Bhatta Gamma-ray emission from blazars R. Prince Significant detection of quasi-periodic oscillation in gamma-ray blazar M. Sniegowska Theories of changing look phenomena M. Meyer Probing the intergalactic magnetic field through gamma-ray observations with the Fermi LAT and H.E.S.S. A. Markowitz Continuum variability in AGN M. Ackermann Transients with Fermi-LATi A. Barnacka Gravitational lenses as high-resolution telescopes M. Gromadzki New types of transients in the era of all-sky surveys S. A. Mueller Resolving the variable sky of gamma-rays at one Giga electron Volt in more detail by advancing the atmospheric Cherenkov-method D. Król Gravitational microlensing events in the optical lightcurve of active galaxy S5 0716+714   I. Transient MWL Sky Very high energy gamma-rays G. Sigl Probing possible Lorentz invariance violations with high energy cosmic particles J. Hinton Transients with HESS C. Pfrommer Electron and proton acceleration at supernova remnant shocks K. Nalewajko Magnetic reconnection in application to relativistic jets of active galaxies M. Zacharias CTA 102 -- year over year receiving you A.P. Noel X-ray intraday variability of Markarian 421 E. Kosmaczewski A multiwavelength view of the dark globule, DC 314.8-5.1   II. Multi-Messenger Astronomy M. Bejger Black holes and neutron stars studied in gravitational waves M. Pohl High energy neutrinos P. Homola Ultra-high energy photons: Chapter (not yet) closed? B. Reville PArticle acceleration at ultra-relativistic shocks S. Reusch Optical follow-up of icecube neutrinos with the AMPEL platform S. Pustelny Global network of optical magnetometers as new channel for multimessanger astronomy J. Niemiec Electron injection at shocks in merging galaxy clusters T. Thomas Cosmic ray hydrodynamics: Theory, galactic winds, and non-thermal filaments M. Tarnopolski Statistical methods for variability studies L. Stawarz Constraining models for particle acceleration by the variability analysis of relativistic jets