Conveners
X-ray Observations
- Martin Blaschke (Institute of Physics, SLU)
Accreting stellar-mass black holes in X-ray binaries (XRBs) can be found in
different states that are characterized by different spectral properties.
The two basic states are high/soft and low/hard states in which either the
thermal multi-colour black-body component originating in the accretion disc or
non-thermal power-law like Comptonisation component originating in the hot
corona...
Observing the x-ray black hole binary source GRS1915+105 has been classified as a top priority during the first year of IXPE operation. The primarily occurrence of the source in thermal state makes it the perfect candidate for black hole spin measurements. To credibly assess the source polarimetric properties, we use a multicolor black body emission model accounting for thermal radiation from...
A widely accepted picture of an accretion flow in a soft spectral state X-ray binary system is a geometrically thin disk structure much alike the classic analytic solution of Shakura and Sunyaev. Despite the fact that the analytic models are troubled by instabilities and miss important aspects of physics such as magnetic fields, they are successfully used as a framework for interpreting...