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Related papers: Pulsar Kick by the Chiral Anisotropy Conversion

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We study the magnetic helicity evolution in neutron stars (NSs). First, we analyze how the surface terms affect the conservation law for the sum of the chiral imbalance of the charged particle densities and the density of the magnetic…

High Energy Astrophysical Phenomena · Physics 2024-01-29 Maxim Dvornikov

We review the main neutrino emission mechanisms operating in dense quark matter under strong magnetic fields, with particular emphasis on conditions expected in the interiors of compact stars. We discuss the direct Urca and neutrino…

High Energy Physics - Phenomenology · Physics 2026-02-27 Igor A. Shovkovy , Ritesh Ghosh

The available data of single X-ray pulsars, their wind nebulae, and the SNRs which are connected to some of these sources are analysed. It is shown that electric field intensity of neutron stars tears off charged particles from the surface…

Astrophysics · Physics 2007-05-23 Oktay H. Guseinov , Askin Ankay , Sevinc O. Tagieva

We study the dependence of collisional energy loss of a test parton moving with a high velocity on the chiral imbalance and magnetic field in the QCD medium. A semi-classical approach is adopted to estimate the parton energy loss that takes…

High Energy Physics - Phenomenology · Physics 2023-10-03 Ritesh Ghosh , Mohammad Yousuf Jamal , Manu Kurian

Based on the recently formulated chiral radiation transport theory for left-handed neutrinos, we study the chiral transport of neutrinos near thermal equilibrium in core-collapse supernovae. We first compute the near-equilibrium solution of…

High Energy Physics - Phenomenology · Physics 2021-12-14 Naoki Yamamoto , Di-Lun Yang

We consider the pulsar velocity problem and relate it to some unconventional neutrino oscillation mechanisms based on a violation of the equivalence principle by neutrinos. We show that the observed pulsar velocities may be explained by…

High Energy Physics - Phenomenology · Physics 2009-10-31 R. Horvat

Asymmetric mass ejection in the early phase of supernova (SN) explosions can impart a kick velocity to the new-born neutron star (NS). For neutrino-driven explosions the NS acceleration was shown to be mainly caused by the gravitational…

High Energy Astrophysical Phenomena · Physics 2017-03-15 H. -Th. Janka

We investigate the behavior of cold quark matter under strong magnetic fields in the frame of a nonlocal NJL model in the chiral limit. Our analysis focuses on deconfinement, chiral symmetry restoration, and the anisotropy in pressure…

High Energy Physics - Phenomenology · Physics 2025-01-31 S. A. Ferraris , J. P. Carlomagno , G. A. Contrera , A. G. Grunfeld

A nascent neutron star may be exposed to fallback accretion soon after the proto-neutron star stage. This high accretion episode can submerge the magnetic field deep in the crust. The diffusion of the magnetic field back to the surface will…

High Energy Astrophysical Phenomena · Physics 2015-06-05 A. Güneydaş , K. Y. Ekşi

We show that the backreaction of left-handed neutrinos out of equilibrium on the matter sector induces an electric current proportional to a magnetic field even without a chiral imbalance for electrons in core-collapse supernovae. We derive…

High Energy Astrophysical Phenomena · Physics 2022-06-28 Jin Matsumoto , Naoki Yamamoto , Di-Lun Yang

Various stellar objects experience a velocity kick at some point in their evolution. These include neutron stars and black holes at their birth or binary systems when one of the two components goes supernova. For most of these objects, the…

Astrophysics of Galaxies · Physics 2024-07-31 Paul Disberg , Nicola Gaspari , Andrew J. Levan

We use a model with two sterile neutrinos obtained by fits to the MiniBoone and LSND experiments. Using formulations with neutrinos created by URCA Processes in a strong magnetic field, so the lowest Landau level has a sizable probability,…

Astrophysics · Physics 2009-11-13 Leonard S. Kisslinger , Ernest M. Henley , Mikkel B. Johnson

Chirality of neutrinos modifies the conventional kinetic theory and hydrodynamics, leading to unusual chiral transport related to quantum anomalies in field theory. We argue that these corrections have new phenomenological consequences for…

High Energy Astrophysical Phenomena · Physics 2016-03-25 Naoki Yamamoto

Recent observations of pulsar wind nebulae and radio polarization profiles revealed a tendency of the alignment between the spin and velocity directions in neutron stars. We study the condition for spin-kick alignment using a toy model, in…

Astrophysics · Physics 2008-11-26 Chen Wang , Dong Lai , JinLin Han

Using twenty long-term 3D core-collapse supernova simulations, we find that lower compactness progenitors that explode quasi-spherically due to the short delay to explosion experience smaller neutron star recoil kicks in the $\sim$100$-$200…

High Energy Astrophysical Phenomena · Physics 2024-02-01 Adam Burrows , Tianshu Wang , David Vartanyan , Matthew S. B. Coleman

We consider a gas composed of a single family of standard model leptons which are approximately massless and trapped inside a charged rotating shell. Due to the magnetic vortical effect, the leptons gain momentum in the direction of the…

High Energy Physics - Theory · Physics 2018-05-15 Evgeny Shaverin

Under nonuniform convection, the distribution of diffusive particles can exhibit dipole and quadrupole anisotropy induced by the fluid inertial and shear force, respectively. These convection-related anisotropies, unlike the Compton-Getting…

High Energy Astrophysical Phenomena · Physics 2022-10-26 Yiran Zhang , Siming Liu , Dejin Wu

We present a model for the anomalous X-ray pulsars (AXPs) in which the emission is powered by accretion from a fossil disk, established from matter falling back onto the neutron star following its birth. The time-dependent accretion drives…

Astrophysics · Physics 2009-10-31 Pinaki Chatterjee , Lars Hernquist , Ramesh Narayan

Coalescing binary black holes emit anisotropic gravitational radiation. This causes a net emission of linear momentum that produces a gradual acceleration of the source. As a result, the final remnant black hole acquires a characteristic…

General Relativity and Quantum Cosmology · Physics 2018-11-14 Juan Calderón Bustillo , James A. Clark , Pablo Laguna , Deirdre Shoemaker

We discuss the "basic" condition for an accreting neutron star to become a microquasar, i.e. ejecting relativistic particles orthogonal to the accretion disk instead of confining disk-material down to the magnetic poles and creating the two…

Astrophysics · Physics 2007-05-23 M. Massi
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