The profiles of lines from a flat. relativistic disk around a Schwarzschild black hole are computed with a rigorous treatment of the energy shifts and photon trajectories. It is found that, unless the disk is optically thin, further structures emerge between the two Doppler horns, at high ( greater than or similar to 80-degrees) inclination angles. These structures are due to a geodesics focusing effect on photons emitted from the ''far'' side of the disk. Their shape and relative intensity are a function of the radial dependence and angular distribution of the line emissivity. Since these structures are due to a purely general relativistic effect, they could provide an unambiguous signature of a relativistic disk in Active Galactic Nuclei and in X-ray binaries.

Matt, G., Perola, G.c., Stella, L. (1993). MULTIPLE-PEAKED LINE-PROFILES FROM RELATIVISTIC DISKS AT HIGH INCLINATION ANGLES. ASTRONOMY & ASTROPHYSICS, 267(2), 643-650.

MULTIPLE-PEAKED LINE-PROFILES FROM RELATIVISTIC DISKS AT HIGH INCLINATION ANGLES

MATT, Giorgio;
1993-01-01

Abstract

The profiles of lines from a flat. relativistic disk around a Schwarzschild black hole are computed with a rigorous treatment of the energy shifts and photon trajectories. It is found that, unless the disk is optically thin, further structures emerge between the two Doppler horns, at high ( greater than or similar to 80-degrees) inclination angles. These structures are due to a geodesics focusing effect on photons emitted from the ''far'' side of the disk. Their shape and relative intensity are a function of the radial dependence and angular distribution of the line emissivity. Since these structures are due to a purely general relativistic effect, they could provide an unambiguous signature of a relativistic disk in Active Galactic Nuclei and in X-ray binaries.
Matt, G., Perola, G.c., Stella, L. (1993). MULTIPLE-PEAKED LINE-PROFILES FROM RELATIVISTIC DISKS AT HIGH INCLINATION ANGLES. ASTRONOMY & ASTROPHYSICS, 267(2), 643-650.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/132400
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