Polarized image of a Schwarzschild black hole with a thin accretion disk as photon couples to Weyl tensor

Abstract

We have studied polarized image of a Schwarzschild black hole with an equatorial thin accretion disk as photon couples to Weyl tensor. The birefringence of photon originating from the coupling affect the black hole shadow, the thin disk pattern and its luminosity distribution. We also analyze the observed polarized intensity in the sky plane. The observed polarized intensity in the bright region is stronger than that in the darker region. The stronger effect of the coupling on the observed polarized vector appears only in the bright region close to black hole. These features in the polarized image could help us to understand black hole shadow, the thin accretion disk and the coupling between photon and Weyl tensor.

15 pages, 11 figures, the accepted version for publication in EPJC

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• Image of Bonnor black dihole with a thin accretion disk and its polarization information
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• Polarized image of an equatorial emitting ring around a 4D Gauss-Bonnet black hole
• Polarized Images of Synchrotron Radiations in Curved Spacetime
• Determination of the spin parameter and the inclination angle by the relativistic images in black hole image
• On the Non-Minimal Coupling of Magnetic Fields with Gravity in Schwarzschild Spacetime