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Particle Acceleration via Transient Stagnation Surfaces in MADs During Flux Eruptions
V. Mpisketzis, G. F. Paraschos, H. Ho-Yin Ng +1
In this study, we focus on the simulation of accretion processes in Magnetically Arrested Disks (MADs) and investigate the dynamics of plasma during flux eruption events. We employ…
The impact of resistivity on the variability of black hole accretion flows
Antonios Nathanail, Yosuke Mizuno, Ioannis Contopoulos +4
Context. The accretion of magnetized plasma onto black holes is a complex and dynamic process, where the magnetic field plays a crucial role. The amount of magnetic flux accumulate…
First Very Long Baseline Interferometry Detections at 870μm
Alexander W. Raymond, Sheperd S. Doeleman, Keiichi Asada +276
The first very long baseline interferometry (VLBI) detections at 870m wavelength (345GHz frequency) are reported, achieving the highest diffraction-limited angular resolutio…
Disk mass after a binary neutron star merger as a constraining parameter for short Gamma Ray Bursts
V. Mpisketzis, A. Nathanail
Context. The coincident detection of GW170817 and GRB170817A marked a milestone for the connection between binary neutron star (BNS) mergers and short gamma-ray bursts (sGRBs). The…
Flares from plasmoids and current sheets around Sgr A*
I. Dimitropoulos, A. Nathanail, M. Petropoulou +2
The supermassive black hole Sgr A* at the center of our galaxy produces repeating near-infrared flares that are observed by ground and space based instruments. This activity has be…
Dynamics and Emission Properties of Flux Ropes from Two-Temperature GRMHD Simulations with Multiple Magnetic Loops
Hong-Xuan Jiang, Yosuke Mizuno, Indu K. Dihingia +3
Flux ropes erupting from the vicinity of the black hole are thought to be a potential model for the flares observed in Sgr\,A. In this study, we examine the radiative propertie…