Dec 11 – 15, 2023
Tsung-Dao Lee Institute
Asia/Shanghai timezone

Supercritical accretion onto compact objects and massive disk winds

Dec 13, 2023, 2:42 PM
20m
Hall # 10

Hall # 10

Invited/Solicited talk in mini-symposium Accretion Processes

Speaker

Prof. Hua Feng (Tsinghua University)

Description

Most ultraluminous X-ray sources (ULXs) may be powered by supercritical accretion onto stellar mass compact objects. In these cases, massive winds is expected to launch due to strong radiation pressure and produce shock-ionized bubble nebulae when interacting with the interstellar medium. I will discuss how to the disk winds shape the observed energy spectrum of ULXs, what one can learn about the accretion physics and evolutionary history of ULXs via VLT MUSE observations of the bubble nebulae, and implications of the ULX feedback in the context of galactic evolution.

Primary author

Prof. Hua Feng (Tsinghua University)

Presentation materials