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Demographics of black holes at 100 R scales: accretion flows, jets, and shadows
Dhanya G. Nair, Neil M. Nagar, Venkatessh Ramakrishnan +87
Using the Event Horizon Telescope (EHT), the gravitationally lensed rings around the supermassive black holes (SMBHs) in Messier 87 (M87) and Sagittarius A* (Sgr A*) have now been…
Probing jet dynamics and collimation in radio galaxies. Application to NGC 1052
Ainara Saiz-Pérez, Christian M. Fromm, Manel Perucho +5
Context. Radio galaxies with visible two-sided jet structures, such as NGC 1052, are sources of particular interest to study the collimation and shock structure of active galactic…
Numerical Investigation of Instabilities in Over-pressured Magnetized Relativistic Jets
Xu-Fan Hu, Yosuke Mizuno, Christian M. Fromm
Context. Relativistic jets from Active Galactic Nuclei are observed to be collimated on the parsec scale. When the pressure between the jet and the ambient medium is mismatched, re…
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…
Prospects of Detecting a Jet in Sagittarius A* with VLBI
Erandi Chavez, Sara Issaoun, Michael D. Johnson +3
Event Horizon Telescope (EHT) images of the horizon-scale emission around the Galactic Center supermassive black hole Sagittarius A* (Sgr A*) favor accretion flow models with a jet…
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…
Impacts of nonthermal emission on the images of a black hole shadow and extended jets in two-temperature GRMHD simulations
Mingyuan Zhang, Yosuke Mizuno, Christian M. Fromm +2
The recent 230 GHz observations from the Event Horizon Telescope collaboration can image the innermost structure of the M87 galaxy showing the shadow of the black hole, a photon ri…