Ray-traced images of a Kerr-Sen black hole with a thin accretion disk show spin-dominated inner-shadow deformation and inclination-dominated redshift maps, while the 86-versus-230 GHz brightness gap is inherited from the input emissivity model.
Bambi, Testing black hole candidates with electromagnetic radi- ation
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Optical images of the Kerr-Sen black hole and thin accretion disk
Ray-traced images of a Kerr-Sen black hole with a thin accretion disk show spin-dominated inner-shadow deformation and inclination-dominated redshift maps, while the 86-versus-230 GHz brightness gap is inherited from the input emissivity model.