Based on ray-shooting method we simulate Fe Kα 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. In 2007 radio telescope Radioastron will be launched at a high elliptical orbit and it will be used as a space dish for VLBI observations with space-ground 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 (shadows). Actually, that is a manifestation of gravitational lens effect in the strong gravitational field near black hole horizon.
Iron Kα Line Profiles and Shadow Shapes as Evidences of Gravitational Lensing in a Strong Gravitational Field Near BHs
DE PAOLIS, Francesco;NUCITA, Achille;INGROSSO, Gabriele
2008-01-01
Abstract
Based on ray-shooting method we simulate Fe Kα 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. In 2007 radio telescope Radioastron will be launched at a high elliptical orbit and it will be used as a space dish for VLBI observations with space-ground 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 (shadows). Actually, that is a manifestation of gravitational lens effect in the strong gravitational field near black hole horizon.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
