activity
20232026
most citedThree-dimensional dynamics of strongly twisted magnetar magnetospheres: Kinking flux tubes and global eruptions

30 citations · 54 across the 13 of their papers we have counts for

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Showing 2026Show all

5 papers · 1 filter

astro-ph.HE2026

Guide field effects on particle acceleration in three-dimensional relativistic magnetic reconnection

Despina Karavola, Lorenzo Sironi, Maria Petropoulou

Relativistic magnetic reconnection is a key mechanism for particle acceleration in astrophysical plasmas. Recent 3D particle-in-cell simulations have shown that, for weak guide fie…

astro-ph.HE2026

Neutrinos and gamma rays from Seyfert galaxies constrain the properties of coronal turbulence

Federico Testagrossa, Damiano F. G. Fiorillo, Luca Comisso +3

The TeV neutrino signal observed by IceCube from the active galactic nucleus (AGN) NGC 1068 can probe its innermost coronal regions. If these neutrinos originate from hadrons accel…

astro-ph.HE2026

The role of Bethe-Heitler pair production in reconnection-driven flares in M87*

Maria Petropoulou, Despina Karavola, Lorenzo Sironi

Rapid TeV flares have been observed from the core of the active galaxy M87. These have been attributed to inverse Compton scattering of disk photons by electrons and positrons acce…

astro-ph.HE2026★ 1 cited

Magnetic reconnection with a 0.1 rate: Effective resistivity in general relativistic magnetohydrodynamics

B. Ripperda, M. P. Grehan, A. Moran +5

Relativistic magnetic reconnection is thought to power various multi-wavelength emission signatures from neutron stars and black holes. Relativistic resistive magnetohydrodynamics…

astro-ph.HE2026★ 5 cited

Diffuse neutrino flux from relativistic reconnection in AGN coronae

D. Karavola, M. Petropoulou, D. F. G. Fiorillo +3

IceCube observations point to Active Galactic Nuclei (AGN) as promising contributors to the observed astrophysical neutrino flux. Close to the central black hole, protons can be ac…