Relativistický seminář
Ústavu teoretické fyziky


Seminář se koná v úterý ve 13:10 v posluchárně ÚTF MFF UK
v 10. patře katedrové budovy v Tróji, V Holešovičkách 2, Praha 8


13. listopadu 2018
New closed solutions for thick fluid tori near black holes
Dr. Vojtěch Witzany
Astronomický ústav AV ČR
(seminář v angličtině)

When accretion onto a black hole occurs either at a fast or a slow rate, radiation stops cooling the accretion flow efficiently and the accretion disk becomes hot and geometrically thick. After a broader introduction to this topic, I will present new closed analytical solutions for geometrically thick fluid equilibria near black holes that can be used as initial conditions for simulations of such radiatively inefficient accretion flows. I will also show some simple magneto-hydrodynamic simulations in which we investigated possible consequences of varying the initial conditions for astrophysical predictions.

20. listopadu 2018
Gravitational microlensing by three-body systems
Dr. David Heyrovský
ÚTF
(seminář v angličtině)

Jiří Bičák                                                                                                  Oldřich Semerák