Seminars
Our seminars take place in the lecture room of the building at
Praha–Sporilov.
Next seminar:
(none)
Previous seminar:
26.05.2014 15:00
Maria Caballero-Garcia
Czech Technical University, Prague
X-ray timing and spectral studies from medium-weight black holes
Abstract
Maria Caballero-Garcia
X-ray timing and spectral studies from medium-weight black holes
A unified characterization of the spectral evolution of black hole binaries has been done in the last 30 yrs. The study of the spectral and aperiodic variability characterizing the X-ray emission from stellar-mass black-hole binaries has revealed to be a very useful tool to understand the mass of the black hole and the physics of accretion on these sources. Ultra-Luminous X-ray sources (ULXs) are accreting black holes that might represent strong evidence of the Intermediate Mass Black Holes (IMBH), proposed to exist by theoretical studies but with no firm detection (as a class) so far. Their X-ray properties have been seen to be different from the case of stellar-mass black hole binaries. I will present the results that we have obtained from two outstanding ULXs (NGC5408 X-1 and the ULXs in M82) and discuss on the properties that can be derived from the study of their X-ray emission.
If you would like to give a seminar in our group, please contact Vladimir Karas or Jaroslav Hamersky.
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