The string-cloud parameter α in Kerr-Bertotti-Robinson spacetimes pushes the ISCO outward, raises accretion efficiency above 0.25, fits microquasar QPO data for α < 0.13, and sustains shock instabilities in GR hydrodynamical accretion.
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Kerr-BR black hole images with magnetically coupled synchrotron emissivity show spin- and B-dependent shifts in the inner disk edge, altered lensing rings, and Doppler asymmetries, with retrograde cases displaying wider central depletion.
citing papers explorer
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Astrophysical signatures of Kerr-Bertotti-Robinson black holes in a cloud of strings: ISCO, microquasar QPOs, and Bondi-Hoyle-Lyttleton accretion
The string-cloud parameter α in Kerr-Bertotti-Robinson spacetimes pushes the ISCO outward, raises accretion efficiency above 0.25, fits microquasar QPO data for α < 0.13, and sustains shock instabilities in GR hydrodynamical accretion.
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Optical Appearance of the Kerr-Bertotti-Robinson Black Hole with a Magnetically Driven Synchrotron Emissivity Model
Kerr-BR black hole images with magnetically coupled synchrotron emissivity show spin- and B-dependent shifts in the inner disk edge, altered lensing rings, and Doppler asymmetries, with retrograde cases displaying wider central depletion.