We present an analytical study on a thick accretion disk model considering a charged fluid encircling a charge or non-charge black hole and endowed with an axisymmetric and stationary magnetic field. Our study is based on the Polish doughnut and provides an extension to this well-known model. Indeed, the effect of the electric and magnetic, and the gravitational fields are known on the...
Magnetic reconnection is an important phenomenon in the astrophysical plasma, e.g. in solar flares, interstellar medium, stellar evolution and supernovae, accretion discs, and jets. We study magnetic reconnection and plasmoid formation in the Orszag-Tang problem. We show magnetic energy reduction caused by magnetic reconnection. We also study the effect of resistivity and compare the numerical...
Puffy disk is a novel model of accretion disks resulting only from a complex global GRRMHD simulation. In this talk I will focus on the observational appearance of such type of disk, which is different from standart models of thin or slim disks. Complicated vertical structure of the disk can tell us a lot about the behaviour of plasma in the turbulent environment in the vicinity of compact...