Speaker
Description
End state of evolution of isolated and binary massive stars/black holes including various observational astrophysical properties of magnetized neutron stars and black holes are discussed. The energetics of rotating black holes and neutron stars is also analyzed. The possibilities of probing black holes nature through the study of their optical properties areexplored in detail.
Study the photons motion around rotating black holes, in particular, the discovery and analysis of the form of silhouettes of these objects, setting and effective implementation of relevant radiostronomical observations on the proof of the existence of the black hole horizon and retrieval of information events on the central object in our galaxy within the Black Hole Cam (BHC) and Event Horizon Telesop (EHT) international projects is one of the most important tasks of modern astrophysics. A general formalism to describe the black hole shadow as an arbitrary polar curve expressed in terms of a Legendre expansion is applied to the specific black holes. The developed formalism offers a number of routes to characterize the distortions of the curve boundaring shadow with respect to reference circles. These distortions are implemented in a coordinate independent manner by different teams analyzing the same data. It has been shown that the new formalism provides an accurate and robust description of noisy observational data, with smaller error variances when compared to previous measurements of the distortion.
