Conveners
:CFT Special seminar: CAMK colloquium
- Krzysztof Nalewajko (Nicolaus Copernicus Astronomical Center, PAS, Warsaw, Poland)
:CFT Special seminar: Summary
- There are no conveners in this block
:CFT Special seminar: Welcome
- There are no conveners in this block
:CFT Special seminar: reception, posters
- There are no conveners in this block
:CFT Special seminar: CFT special seminar
- There are no conveners in this block
I present hydrodynamic simulations of a thin accretion disk around compact objects using three different pseudo-Newtonian potentials: the Paczyński–Wiita and Kluźniak–Lee for a Schwarzschild black hole, and the newly devised potential for a Reissner–Nordström (RN) naked singularity. I study the differences between the properties of disks surrounding Schwarzschild black holes in two related...
Relativistic jets are powerful collimated outflows from accreting compact objects, especially spinning black holes. Jets, as well as their associated mechanisms of energy dissipation and particle acceleration, can be investigated by global or local numerical simulations using methods like general-relativistic magneto-hydro-dynamics (GRMHD), particle-in-cell (PIC), etc. This presentation...
Reflection of thermal disk emission returning to the disk has recently been claimed to be important in the soft states of black hole binaries. In particular, Steiner et al. (2024) proposed that it could explain the X-ray polarisation measured by IXPE in the soft state of Cyg X-1. This would be an important argument for rapid rotation of black holes in HMXBs, since the effect is only important...
X-ray binaries hosting compact objects exhibit various variabilities in their X-ray spectra, often attributed to thermoviscous instabilities within their accretion disks. In particular, short-term variabilities , believed to arise from radiation pressure instabilities (RPIs) from the inner regions of the disk, have been well studied in black hole (BH) X-ray binaries. Recent observations...
