4 papers
Emergence of cyclic flux eruptions in kinetic simulations of magnetized spherical accretion onto a Schwarzschild black hole
Enzo Figueiredo, John Mehlhaff, Adrien Soudais +1
The dynamics of black hole magnetospheres critically depend on the black hole spin and on the structure of the accretion flow. In the limit of a Schwarzschild black hole immersed i…
Collisionless Accretion of Finite-Angular-Momentum Plasma onto a Spinning Black Hole
John M. Mehlhaff, Alexander Y. Chen, Martin Luepker +1
In low-luminosity active galactic nuclei like M87* and Sgr A*, the accretion disk around the central supermassive black hole is tenuous and collisionless. As a result, the usual id…
Radiative relativistic turbulence as an in situ pair-plasma source in blazar jets
John Mehlhaff, Muni Zhou, Vladimir Zhdankin
As powerful gamma-ray engines, blazars -- relativistic plasma jets launched toward Earth from active galactic nuclei -- are manifestly high-energy particle accelerators. Yet, exact…
A kinetic model of jet-corona coupling in accreting black holes
J. Mehlhaff, B. Cerutti, B. Crinquand
Black hole (BH) accretion disks are often coupled to ultramagnetized and tenuous plasma coronae close to their central BHs. The coronal magnetic field can exchange energy between t…