SHAO Astrophysics Colloquium

Title: Ultraluminous X-ray Sources

Speaker: Prof. Hua Feng (Tsinghua University)

Time: 3 pm, January 11 (Thursday)

Location: Lecture Hall, 3rd floor

Abstract: Ultraluminous X-ray sources (ULXs) are non-nuclear accreting compact objects found in external galaxies. They appear to exceed the Eddington limit of canonical black hole binaries under the assumption of isotropic emission. Plausible evidence for intermediate mass black holes was found, but the majority of them are believed to be supercritical accreting systems. I will give an overview of ULXs and discuss their physical natures.