Bożena Czerny

Centrum Fizyki Teoretycznej PAN

Sesja V: Astrofizyka wysokich energii (wykład zaproszony)

Środa 13.09.2023 11:00 – 11:30

abstrakt:
Accretion onto black hole powers a hundred of well studied binary black holes and hundreds of thousands of active galactic nuclei. The overall picture is well established but a number of aspects are still under discussion. Those are: stability of the radiation-pressure dominated disks, the transition to an inner ADAF flow and jet formation, the possibility of the vertical stratification of the inner disk into warm (accreting ?) corona and inner (passive ?) disk. All these aspects are likely related to the role of the magnetic field. New observational developments, including transient behaviour seen now in many active galaxies (Changing-Look AGN, Tidal Disruption Events) due to massive surveys path the way do better understanding of the aspects, which are too difficult to address at the basis of pure theory.