activity
19932022
most citedOn the Fate of Gas Accreting at a Low Rate onto a Black Hole

1.4k citations · 12.6k across the 141 of their papers we have counts for

collaborators

143 papers

astro-ph.GA2022★ 9 cited

On the origin of radio-loudness in active galactic nuclei using far-infrared polarimetric observations

Enrique Lopez-Rodriguez, Makoto Kishimoto, Robert Antonucci +3

The dichotomy between radio-loud (RL) and radio-quiet (RQ) active galactic nuclei (AGN) is thought to be intrinsically related to radio jet production. This difference may be expla…

astro-ph.HE2022

Fully kinetic shearing-box simulations of magnetorotational turbulence in 2D and 3D. I. Pair plasmas

Fabio Bacchini, Lev Arzamasskiy, Vladimir Zhdankin +3

The magnetorotational instability (MRI) is a fundamental mechanism determining the macroscopic dynamics of astrophysical accretion disks. In collisionless accretion flows around su…

astro-ph.HE2022★ 12 cited

Kinetic Simulations of Instabilities and Particle Acceleration in Cylindrical Magnetized Relativistic Jets

José Ortuño-Macías, Krzysztof Nalewajko, Dmitri A. Uzdensky +4

Relativistic magnetized jets, such as those from AGN, GRBs and XRBs, are susceptible to current- and pressure-driven MHD instabilities that can lead to particle acceleration and no…

astro-ph.HE2022★ 2 cited

Magnetization of Relativistic Current-Carrying Jets with Radial Velocity Shear

Dominika Ł. Król, Łukasz Stawarz, Mitchell C. Begelman +3

Astrophysical jets, launched from the immediate vicinity of accreting black holes, carry away large amounts of power in a form of bulk kinetic energy of jet particles and electroma…

astro-ph.HE2022

A radio, optical, UV and X-ray view of the enigmatic changing look Active Galactic Nucleus 1ES~1927+654 from its pre- to post-flare states

Sibasish Laha, Eileen Meyer, Agniva Roychowdhury +17

The nearby type-II AGN 1ES1927+654 went through a violent changing-look (CL) event beginning December 2017 during which the optical and UV fluxes increased by four magnitudes over…

astro-ph.HE2021★ 76 cited

What really makes an accretion disc MAD

Mitchell C. Begelman, Nicolas Scepi, Jason Dexter

Magnetically arrested accretion discs (MADs) around black holes (BH) have the potential to stimulate the production of powerful jets and account for recent ultra-high-resolution ob…