After a brief review of the history of X-ray Astronomy, I will describe the present major X-ray facilities and discuss the future directions of X-ray astronomy: high energy resolution and polarimetry.
In my first talk I present a study of the contributions to the relativistic Fe K α line profile from higher order images (HOIs) produced by strongly deflected rays from the disc which cross the plunging region, located between the innermost stable circular orbit (ISCO) radius and the event horizon of a Kerr black hole.
We investigate the characteristics features imprinted by the HOIs in the...
I will present the basic usage of the GRMHD code HARM with some examples.
The redundant R in GRRHMD stands for Radiation - in this short talk I will present how it works in the Koral code, why we want to use it and shortly what are other ways how to implement radiation in MHD codes.