RAGtime 24

Session

Accretion Discs

12 Oct 2022, 14:35

Opava

Conveners

Accretion Discs

• Jiří Horák (Astronomical Institute ASCR, Prague)

51. Radial structure of thin accretion disks in a general metric

Michal Bursa (ASU)

12/10/2022, 14:35

Talk

TBA

22. Indication of SMBH - IMBH binary: ultra-fast outflows from AGN

Petra Suková (ASU CAS)

12/10/2022, 14:55

Online talk

Based on the high cadence X-ray monitoring of a flare coming from the nucleus of a galaxy located cca 250 Mpc away and discovered by ASASSN in December 2020, the existence of ultra-fast outflows in the source was revealed. The outflows were quasiperiodically launched from near the SMBH with variable column density and ionization, but constant velocity, for more than three months. We interpret...

15. Black widow pulsars and the maximum mass for neutron stars

John Miller (University of Oxford)

12/10/2022, 15:15

Keynote talk

A review will be presented of the idea of black widow pulsars and of recent literature which aims to give a lower limit for the maximum neutron star mass using observational data for these objects. Comparison will be made with other related work.

46. Accretion disk backflow in resistive MHD simulations

Ruchi Mishra (CAMK)

12/10/2022, 16:00

Talk

Backflow is a part of the flow in the accretion disk which is directed away from the star. Although it is well established in purely hydro-dynamical framework, it is only recently that it has been identified in magnetohydrodynamics (MHD) simulations. We perform resistive magnetohydrodynamics (MHD) simulations of an accretion disk with alpha-viscosity, accreting onto a slowly rotating star...