Speaker
Hua Feng
(Tsinghua University)
Description
Supercritical accretion onto compact objects may drive massive winds
that are nearly spherical, optically thick, and Eddington-limited.
Blackbody emission from the photosphere is the direct observational
signature of the wind. Here I show that such a scenario can explain the
X-ray emission from the luminous and very soft sources in nearby
galaxies, and their broadband spectra via an irradiation model that
takes into account the presence of the optically thick wind and
radiation transfer in it.
Primary author
Hua Feng
(Tsinghua University)
