Corpus ID: 212645680

Magnetic reconnection and hot-spot formation in black-hole accretion disks.

  title={Magnetic reconnection and hot-spot formation in black-hole accretion disks.},
  author={Bart Ripperda and Fabio Bacchini and Alexander Philippov},
  journal={arXiv: High Energy Astrophysical Phenomena},
  • Bart Ripperda, Fabio Bacchini, Alexander Philippov
  • Published 2020
  • Physics
  • arXiv: High Energy Astrophysical Phenomena
  • Hot spots, or plasmoids, forming due to magnetic reconnection in thin current sheets, are conjectured to power frequent bright X-ray and near-infrared flares from Sgr A*, the supermassive black hole in the center of our Galaxy. It is of yet unclear how, where, and when such thin current sheets form in black-hole accretion disks or astrophysical jets. In this work we perform axisymmetric general-relativistic resistive magnetohydrodynamics simulations to model magnetic reconnection and associated… CONTINUE READING