COO2 - Theoretical Gravitational Lensing |
Speaker_ |
Zakharov, Alexander |
Co-autors |
F. De Paolis, A.A. Nucita, G. Ingrosso |
Talk _ |
Fe K_\alpha line profiles and shadows shapes as evidences of a gravitational lensing in a strong gravitational field near BHs |
Abstract _ |
Based on ray-shooting method we simulate Fe $K_\alpha$ line profiles discovered in microquasars and Seyfert galaxies. Using narrow disk model for the emission line we describe transformations of characteristic two-peak profiles into one-peak profiles. We discuss also features at high inclination angles ($> 85^0$) since two addititional peaks arise in this case. In 2007 Radioastron 10 m telescope will be launched and it will be a generalization of VLBI technique using space base. This interferometer will have extraordinary angular resolution (~ 10^{-6} as). We discuss a procedure to measure masses, charges and spins analyzing these forms of mirages (glories or shadows). Actually, that is a manifestation of gravitational lens effect in the strong gravitational field near black hole horizon. |