GRMHD and GRRT simulations of accretion onto a spinning Kerr-like wormhole show throat-dominated emission producing quasi-periodic modulations in 230 GHz light curves, distinct from Kerr black holes.
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A Chimera accretion flow can sustain MAD-level horizon flux and electromagnetic jet power without the standard MAD's eruptive variability, mass-flow geometry, or inner-disk morphology, so MAD-like behavior is multi-diagnostic and history-dependent.
GRMHD models show PA1 aligns with the approaching limb for high spins, enabling mild disfavoring of low spins and strong disfavoring of Earth-pointing spins in M87* from EHT data, with similar potential for Sgr A*.
Under fixed-background GRMHD and polarized radiative transfer, modified Kerr-Hayward black holes produce EHT fluid and image observables functionally indistinguishable from Kerr.
The work proposes GRMHD jet simulations to generate synthetic synchrotron maps and polarization signatures for testing physical models of observed magnetic filaments.
citing papers explorer
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Dynamics and Radiative Signatures of Accretion Flows onto a Kerr-like Wormhole
GRMHD and GRRT simulations of accretion onto a spinning Kerr-like wormhole show throat-dominated emission producing quasi-periodic modulations in 230 GHz light curves, distinct from Kerr black holes.
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The SANE, the MAD, and the Chimera
A Chimera accretion flow can sustain MAD-level horizon flux and electromagnetic jet power without the standard MAD's eruptive variability, mass-flow geometry, or inner-disk morphology, so MAD-like behavior is multi-diagnostic and history-dependent.
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Ring Position Angles and Spin in M87* and Sgr A*
GRMHD models show PA1 aligns with the approaching limb for high spins, enabling mild disfavoring of low spins and strong disfavoring of Earth-pointing spins in M87* from EHT data, with similar potential for Sgr A*.
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Observational distinguishability of the Kerr and Kerr-Hayward metrics to EHT
Under fixed-background GRMHD and polarized radiative transfer, modified Kerr-Hayward black holes produce EHT fluid and image observables functionally indistinguishable from Kerr.
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Exploring the physics behind the observed magnetic filaments in large scale radio galaxies
The work proposes GRMHD jet simulations to generate synthetic synchrotron maps and polarization signatures for testing physical models of observed magnetic filaments.