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Related papers: Neutrino Processes in Strong Magnetic Fields and I…

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The processes of electron neutrino capture on neutron and electron anti-neutrino capture on proton, and their reverse processes provide the dominant mechanisms for heating and cooling the material below the stalled shock in a core-collapse…

Astrophysics · Physics 2017-08-23 Huaiyu Duan , Yong-Zhong Qian

The rates of electron neutrino capture on neutron, electron anti-neutrino capture on proton, and their reverse processes are important for understanding the production of heavy elements in the supernova environment above the protoneutron…

Astrophysics · Physics 2009-11-11 Huaiyu Duan , Yong-Zhong Qian

Based on the magnetorotational model of a supernova explosion with core collapse, we investigate the significant processes of neutrino heating of the supernova shock. These processes should be taken into account in self-consistent modeling,…

Astrophysics · Physics 2007-05-23 A. A. Gvozdev , I. S. Ognev

In the presence of strong magnetic field reported to have been observed on the surface of some neutron stars and on what are called Magnetars, a host of physical phenomenon from the birth of a neutron star to free streaming neutrino cooling…

High Energy Physics - Phenomenology · Physics 2007-05-23 Ashok Goyal

Strong (B >> 10^9 G) and superstrong (B > 10^{14} G) magnetic fields profoundly affect many thermodynamic and kinetic characteristics of dense plasmas in neutron star envelopes. In particular, they produce strongly anisotropic thermal…

Astrophysics · Physics 2008-11-26 A. Y. Potekhin , G. Chabrier , D. G. Yakovlev

In preparation for a set of hydrodynamical simulations of core-collapse supernovae and protoneutron star winds, we investigate the rates of production and thermalization of $\nu_\mu$ and $\nu_\tau$ neutrinos in dense nuclear matter.…

Astrophysics · Physics 2009-10-31 Todd A. Thompson , Adam Burrows

We investigate the effects of strong magnetic fields on the equation of state of warm stellar matter as it may occur in a protoneutron star. Both neutrino free and neutrino trapped matter at a fixed entropy per baryon are analyzed. A…

Nuclear Theory · Physics 2015-05-28 A. Rabhi , P. K. Panda , C. Providência

The impact of strong magnetic fields B>10e13 G on the thermal evolution of neutron stars is investigated, including crustal heating by magnetic field decay. For this purpose, we perform 2D cooling simulations with anisotropic thermal…

Astrophysics · Physics 2010-11-11 Deborah N. Aguilera , José A. Pons , Juan A. Miralles

We consider the amplification and transport of a magnetic field in the collapsed core of a massive star, including both the region between the neutrinosphere and the shock, and the central, opaque core. An analytical argument explains why…

Astrophysics · Physics 2009-11-06 Christopher Thompson , Norman Murray

We perform a series of two-dimensional magnetohydrodynamic simulations of supernova cores. Since the distributions of the angular momentum and the magnetic fields of strongly magnetized stars are quite uncertain, we systematically change…

Astrophysics · Physics 2010-11-19 Kei Kotake , Shoichi Yamada , Katsuhiko Sato

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

Neutrino emission drives neutron star cooling for the first several hundreds of years after its birth. Given the low energy ($\sim$ keV) nature of this process, one expects very few nonstandard particle physics contributions which could…

Astrophysics · Physics 2009-11-10 Prashanth Jaikumar , K. R. S. Balaji , Charles Gale

We investigate the effects of a magnetic field on the thermodynamics of a neutron system at finite density and temperature. Our main motivation is to deepen the understanding of the physics of a class of neutron stars known as magnetars,…

Nuclear Theory · Physics 2019-06-12 E. J. Ferrer , A. Hackebill

We study the effect of magnetic field on the dominant neutrino emission processes in neutron stars.The processes are first calculated for the case when the magnetic field does not exceed the critical value to confine electrons to the lowest…

High Energy Physics - Phenomenology · Physics 2015-06-25 Ashok Goyal , V. K. Gupta , Kanupriya , Vinita Tuli

We present 2D simulations of the cooling of neutron stars with strong magnetic fields (B \geq 10^{13} G). We solve the diffusion equation in axial symmetry including the state of the art microphysics that controls the cooling such as…

Astrophysics · Physics 2007-10-26 Deborah N. Aguilera , Jose A. Pons , Juan A. Miralles

The Kelvin-Helmholtz cooling epoch, lasting tens of seconds after the birth of a neutron star in a successful core-collapse supernova, is accompanied by a neutrino-driven wind. For magnetar-strength ($\sim10^{15}$ G) large scale surface…

Astrophysics · Physics 2011-09-29 Todd A. Thompson , Philip Chang , Eliot Quataert

We explore the impact of magnetic field on neutrino-matter interactions in core-collapse supernova. We first derive the modified source terms for neutrino-nucleon scattering and neutrino absorption and emission processes in the moment…

High Energy Astrophysical Phenomena · Physics 2021-01-27 Takami Kuroda

We study the cooling evolution of neutron stars with strong poloidal magnetic fields (with strength not far from observed values) using the full general relativity 2-dimensional \textit{Astreus} code, which solves consistently Einstein's…

High Energy Astrophysical Phenomena · Physics 2025-06-12 Rodrigo Negreiros , Jeffrey Peterson , Veronica Dexheimer

We study the effects of the magnetic field on the dynamics of non-rotating stellar cores by performing two-dimensional (2D), magnetohydrodynamics (MHD) simulations. To this end, we have updated our neutrino-radiation-hydrodynamics supernova…

High Energy Astrophysical Phenomena · Physics 2020-10-07 Jin Matsumoto , Tomoya Takiwaki , Kei Kotake , Yuta Asahina , Hiroyuki R. Takahashi

An influence of a magnetic field on beta-processes is investigated under conditions of a core-collapse supernova. For realistic magnetic fields reachable in astrophysical objects we obtain simple analytical expressions for reaction rates of…

High Energy Astrophysical Phenomena · Physics 2020-04-08 Alexandra Dobrynina , Igor Ognev
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