EO meeting 23/06/2016

Europe/Stockholm
KTH meeting room 5th floor

KTH meeting room 5th floor

Description
Title: Hyper-Eddington accretion and ULXs. Speaker: Marek Abramowicz. Abstract: The ultra-luminous X-ray sources are still a puzzle. There are purely observational proofs that at least a few of them are accreting neutron stars, or stellar mass black holes. However, one cannot say that all ULXs are connected with compact objects with mases not in excess of 100 solar masses. The intermediate mass black holes may still be needed. There is no convincing theoretical model explaining how an acceting system may collimate radiation to highly hyper-Eddington luminosities. I will discuss mostly my most recent papers (with Lasota, Narayan and Sądowski) devoted to these unsolved issues. They are based on up-to-date advanced numerical GRRMHD simulations (GRR = General Relativistic and Radiative) by Sądowski.
The agenda of this meeting is empty