Nordita Astrophysics Seminars

Cross-wavelength correlations as a diagnostic of black hole vicinity

by Alexandra Veledina (Nordita)

Europe/Stockholm
https://stockholmuniversity.zoom.us/j/530682073

https://stockholmuniversity.zoom.us/j/530682073

Description

In the long history of studies of accreting black holes, X-rays traditionally served as the primary source of information about physical conditions of matter around these objects. These paradigm has been changing over the last decades, with the development of high time-resolution optical and infrared instruments. Fast variability at these wavelengths revealed complex connection to the X-ray radiation. The cross-talk between the energy bands becomes a powerful and independent tool to probe the geometry and physical processes in black hole vicinity. In the presentation I will describe observational properties of multiwavelength variability of accreting black holes and compare them to the recent model results.