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The behavior of the neutrino flux in vortex and twisting magnetic fields is considered within the left-right symmetric model. By way of illustration of the magnetic fields we discuss the magnetic fields of the coupled sunspots (CS's) which…

High Energy Physics - Phenomenology · Physics 2023-07-18 O. M. Boyarkin , I. O. Boyarkina

We investigate induced Compton/Brillouin scattering of electromagnetic waves in magnetized electron and positron pair plasma by verifying kinetic theory with Particle-in-Cell simulations. Applying this to fast radio bursts (FRBs) in…

High Energy Astrophysical Phenomena · Physics 2026-01-28 Rei Nishiura , Shoma F. Kamijima , Kunihito Ioka

The impact of the magnetic field on postbounce supernova dynamics of non-rotating stellar cores is studied by performing three-dimensional magnetohydrodynamics simulations with spectral neutrino transport. The explodability of strongly and…

High Energy Astrophysical Phenomena · Physics 2022-08-19 Jin Matsumoto , Yuta Asahina , Tomoya Takiwaki , Kei Kotake , Hiroyuki R. Takahashi

The high quiescent X-ray luminosity observed in some magnetars is widely attributed to the decay and evolution of their ultra-strong magnetic fields. Several dissipation mechanisms have been proposed, each operating with different…

High Energy Astrophysical Phenomena · Physics 2025-05-27 N. A. Moraga , F. Castillo , D. D. Ofengeim , A. Reisenegger , J. A. Valdivia , M. E. Gusakov , E. M. Kantor , A. Y. Potekhin

Selfconsistent magnetospheres of rotating cosmic magnets (neutron stars/pulsars) with arbitrary inclination of the magnetic against the rotation axis are considered. Present studies concentrate on the regime dominated by the force--free…

Astrophysics · Physics 2007-05-23 Peter Biltzinger , Klaus Oswald Thielheim

We performed the longest numerical-relativity neutrino-radiation magnetohydrodynamics simulation for a binary neutron star merger that extends to $\approx1.5\mathrm{\,s}$ after the merger. We consider the binary model that undergoes the…

High Energy Astrophysical Phenomena · Physics 2024-10-16 Kota Hayashi , Kenta Kiuchi , Koutarou Kyutoku , Yuichiro Sekiguchi , Masaru Shibata

Soft X-ray emission from neutron stars affords powerful diagnostic tools for uncovering their surface and interior properties, as well as their geometric configurations. In the atmospheres of neutron stars, the presence of magnetic fields…

High Energy Astrophysical Phenomena · Physics 2025-10-29 Hoa Dinh Thi , Matthew G. Baring , Kun Hu , Alice K. Harding , Joseph A. Barchas

Binary neutron star mergers are expected to generate intense magnetic fields that power relativistic and non-relativistic outflows and shape their multimessenger signatures. These fields likely arise from the turbulent amplification of…

High Energy Astrophysical Phenomena · Physics 2026-01-30 Eduardo M. Gutiérrez , David Radice , Jacob Fields , James M. Stone

We use three dimensional radiation magneto-hydrodynamic simulations to study the effects of magnetic fields on the energy transport and structure of radiation pressure dominated main sequence massive star envelopes at the region of the iron…

Solar and Stellar Astrophysics · Physics 2017-07-19 Yan-Fei Jiang , Matteo Cantiello , Lars Bildsten , Eliot Quataert , Omer Blaes

Context. The influence of magnetic fields on stellar core collapse and explosion is not well explored. It depends on the possibility to amplify the pre-collapse fields. Without rotation this can happen by compression, convection, the…

Solar and Stellar Astrophysics · Physics 2015-03-17 Martin Obergaulinger , Hans-Thomas Janka

We review theoretical models of the early stages of star formation, in which gravitational collapse is strongly regulated by magnetic fields and the associated process of ambipolar diffusion. We discuss results of numerical simulations and…

Astrophysics · Physics 2007-05-23 Glenn E. Ciolek , Shantanu Basu

In this paper we present the results of time-dependent simulations of dipolar axisymmetric magnetospheres of neutron stars carried out both within the framework of relativistic magnetohydrodynamics and within the framework of resistive…

Astrophysics · Physics 2009-11-13 S. S. Komissarov

In [Gusakov et al.\ PRD, 96, 103012, (2017)], we proposed a self-consistent method to study the quasistationary evolution of the magnetic field in neutron-star cores. Here we apply it to calculate the instantaneous particle velocities and…

High Energy Astrophysical Phenomena · Physics 2018-08-13 D. D. Ofengeim , M. E. Gusakov

The planet Mercury possesses a small but highly dynamic magnetosphere in which the role and dynamics of electrons are still largely unknown. We aim at modeling the global dynamics of solar wind electrons impinging on Mercury's…

Binary neutron star mergers are promising sources of gravitational waves for ground-based detectors such as Advanced LIGO. Neutron-rich material ejected by these mergers may also be the main source of r-process elements in the Universe,…

High Energy Astrophysical Phenomena · Physics 2017-01-04 Francois Foucart , Evan O'Connor , Luke Roberts , Lawrence E. Kidder , Harald P. Pfeiffer , Mark A. Scheel

We apply the model of flux expulsion from the superfluid and superconductive core of a neutron star, developed by Konenkov & Geppert (2000), both to neutron star models based on different equations of state and to different initial magnetic…

Astrophysics · Physics 2009-11-06 D. Konenkov , U. Geppert

The quasiperiodic oscillations found in the three giant flares of soft gamma-ray repeaters observed to date have been interpreted as crustal oscillations caused by a starquake following a dramatic rearrangement of the stellar magnetic…

High Energy Astrophysical Phenomena · Physics 2019-09-13 Gibran H. de Souza , Cecilia Chirenti

We consider topological configurations of the magnetically coupled spinning stellar binaries (e.g., merging neutron stars or interacting star-planet systems). We discuss conditions when the stellar spins and the orbital motion nearly…

High Energy Astrophysical Phenomena · Physics 2021-12-15 Sergey A. Cherkis , Maxim Lyutikov

(ABBREVIATED) We consider the structure of neutron star magnetospheres threaded by large-scale electrical currents, and the effect of resonant Compton scattering by the charge carriers (both electrons and ions) on the emergent X-ray spectra…

Astrophysics · Physics 2011-04-04 C. Thompson , M. Lyutikov , S. R. Kulkarni

Detecting possible electromagnetic precursors to the gravitational signal from merging compact objects is challenging, but it can reveal intricate physical properties of the merging stars through their gravitational and electromagnetic…

High Energy Astrophysical Phenomena · Physics 2026-04-28 Maxim Lyutikov
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