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Composition-dependent acceleration of UHE Cosmic Rays in AGN electric fields
E. Koutsoumpou, I. Contopoulos, A. Nathanail +2
The origin of ultra-high-energy cosmic rays (UHECRs) remains elusive, as proposed acceleration mechanisms are rarely connected directly to composition-sensitive air-shower observab…
Dynamics and Spectra-Polarimetric Signatures of GRMHD Simulations with Multiple Magnetic Loops
Raoul Kinadeter, Christian M. Fromm, Yosuke Mizuno +3
Relativistic jets are a common outcome of accretion onto black holes, yet their presence and variability depend strongly on the magnetic and dynamical state of the accretion flow.…
Probing radiation micro-physics in M 87 I. Total intensity and broad-band spectra
Christian M. Fromm, Yosuke Mizuno, Ziri Younsi +6
Next generation Very Long Baseline Interferometers (VLBI) will provide dense sampling of the Fourier space together with high signal to noise ratios allowing to reliably observe an…
Broadband multiwavelength properties of the archetypal blazar 3C 279 during the 2017 Event Horizon Telescope campaign
G. Principe, J. C. Algaba, E. Aviano +529
The archetypal blazar 3C 279 hosts a prominent relativistic jet and exhibits strong broadband variability across the electromagnetic spectrum. In April 2017, the Event Horizon Tele…
The azimuthal structure of magnetically arrested disks during flux eruption events
Argyrios Loules, Antonios Nathanail, Ioannis Contopoulos
We analyze data from a standard 3D general-relativistic magnetohydrodynamics (GRMHD) simulation, focusing on equatorial slices in order to examine the details and the evolution of…
Black hole Limits Redefined: Extreme Efficiency in Black Hole Jets
Antonios Nathanail
Relativistic jets from black holes can extract energy not only from accretion but also directly from the black hole's spin, as described by the Blandford-Znajek mechanism. A longst…