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Three-dimensional dynamics of strongly twisted magnetar magnetospheres: Kinking flux tubes and global eruptions

Autor: Mahlmann, J. F., Philippov, A. A., Mewes, V., Ripperda, B., Most, E. R., Sironi, L.

The origins of the various outbursts of hard X-rays from magnetars (highly magnetized neutron stars) are still unknown. We identify instabilities in relativistic magnetospheres that can explain a range of X-ray flare luminosities. Crustal surface mot

Externí odkaz: http://arxiv.org/abs/2302.07273

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A new first-order formulation of the Einstein equations exploiting analogies with electrodynamics

Autor: Olivares, H., Peshkov, I. M., Most, E. R., Guercilena, F. M., Papenfort, L. J.

The Einstein and Maxwell equations are both systems of hyperbolic equations which need to satisfy a set of elliptic constraints throughout evolution. However, while electrodynamics (EM) and magnetohydrodynamics (MHD) have benefited from a large numbe

Externí odkaz: http://arxiv.org/abs/2111.05282

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Weak Alfv\'{e}nic turbulence in relativistic plasmas. Part 1. Dynamical equations and basic dynamics of interacting resonant triads

Autor: TenBarge, J. M., Ripperda, B., Chernoglazov, A., Bhattacharjee, A., Mahlmann, J. F., Most, E. R., Juno, J., Yuan, Y., Philippov, A. A.

Alfv\'{e}n wave collisions are the primary building blocks of the non-relativistic turbulence that permeates the heliosphere and low-to-moderate energy astrophysical systems. However, many astrophysical systems such as gamma-ray bursts, pulsar and ma

Externí odkaz: http://arxiv.org/abs/2105.01146

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Weak Alfv\'enic turbulence in relativistic plasmas II: Current sheets and dissipation

Autor: Ripperda, B., Mahlmann, J. F., Chernoglazov, A., TenBarge, J. M., Most, E. R., Juno, J., Yuan, Y., Philippov, A. A., Bhattacharjee, A.

Alfv\'{e}n waves as excited in black hole accretion disks and neutron star magnetospheres are the building blocks of turbulence in relativistic, magnetized plasmas. A large reservoir of magnetic energy is available in these systems, such that the pla

Externí odkaz: http://arxiv.org/abs/2105.01145

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