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Related papers: From microphysics to dynamics of magnetars

200 papers

Ferromagnetism in diluted magnets in the compensated regime p << x is shown to be suppressed by the formation of impurity spin clusters. The majority bulk spin couplings are shown to be considerably weakened by the preferential accumulation…

Materials Science · Physics 2015-06-25 Avinash Singh

Neutrino energy losses through neutral weak currents in the triplet-spin superfluid neutron liquid are studied for the case of condensate involving several magnetic quantum numbers. Low-energy excitations of the multicomponent condensate in…

High Energy Physics - Phenomenology · Physics 2011-10-25 L. B. Leinson

Milli-magnetically charged particles generically appear in scenarios with kinetic mixing. We present model independent bounds on these particles coming from magnetars. Schwinger pair production discharges the magnetic field of the magnetar.…

High Energy Physics - Phenomenology · Physics 2017-09-20 Anson Hook , Junwu Huang

The origin of the strong magnetic fields measured in magnetars is one of the main uncertainties in the neutron star field. On the other hand, the recent discovery of a large number of such strongly magnetized neutron stars, is calling for…

High Energy Astrophysical Phenomena · Physics 2015-06-22 J. Martin , N. Rea , D. F. Torres , A. Papitto

We investigate several theoretical possibilities for the suppression in a c-axis magnetic field of the magnetic resonance recently observed in inelastic neutron scattering experiments on YBCO_{6.6}. We find that neither the Doppler shift of…

Superconductivity · Physics 2009-11-07 M. Eschrig , M. R. Norman , B. Janko

The phenomenology of the emission of pulsars and magnetars depends dramatically on the structure and properties of their magnetic field. In particular it is believed that the outbursting and flaring activity observed in AXPs and SRGs is…

High Energy Astrophysical Phenomena · Physics 2016-06-22 N. Bucciantini , A. G. Pili , L. Del Zanna

We obtain the critical magnetic field required for complete destruction of $S$-wave pairing in neutron matter, thereby setting limits on the pairing and superfluidity of neutrons in the crust and outer core of magnetars. We find that for…

Nuclear Theory · Physics 2016-02-02 Martin Stein , Armen Sedrakian , Xu-Guang Huang , John W. Clark

We investigate the effects of strong magnetic fields on the equation of state of dense stellar neutrino-free and neutrino-trapped matter. Relativistic nuclear models both with constant couplings (NLW) and with density dependent parameters…

Nuclear Theory · Physics 2010-04-22 A. Rabhi , C. Providencia

It is expected on both evolutionary and empirical grounds that many merging neutron star (NS) binaries are composed of a highly magnetized NS in orbit with a relatively low magnetic field NS. I study the magnetic interactions of these…

High Energy Astrophysical Phenomena · Physics 2015-06-05 Anthony L. Piro

Quantum mechanical corrections to the hydromagnetic force balance equation, derived from the microscopic Schr\"{o}dinger-Pauli theory of quantum plasmas, modify the equilibrium structure and hence the mass quadrupole moment of a neutron…

High Energy Astrophysical Phenomena · Physics 2015-11-20 A. G. Suvorov , A. Mastrano , A. Melatos

Magnetic fields of order $10^{15}$ G have been measured at the surface of some neutron stars, and much stronger magnetic fields are expected to be present in the solid region beneath the surface. The effects of the magnetic field on the…

High Energy Astrophysical Phenomena · Physics 2019-05-15 Y. D. Mutafchieva , N. Chamel , Zh. K. Stoyanov , J. M. Pearson , L. M. Mihailov

We investigate the influence of magnetic fields upon the dynamics of and resulting gravitational waves from a binary neutron star merger in full general relativity coupled to ideal magnetohydrodynamics (MHD). We consider two merger…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Matthew Anderson , Eric W. Hirschmann , Luis Lehner , Steven L. Liebling , Patrick M. Motl , David Neilsen , Carlos Palenzuela , Joel E. Tohline

Isolated neutron stars show a diversity in timing and spectral properties, which has historically led to a classification in different sub-classes. The magnetic field plays a key role in many aspects of the neutron star phenomenology: it…

High Energy Astrophysical Phenomena · Physics 2015-01-28 Daniele Viganò , Jose A. Pons , Juan A. Miralles , Nanda Rea

We suggest a mechanism that may resolve a conflict raised by Link between the precession of a neutron star and the standard picture in which its core is composed of a mixture of a neutron superfluid and a type-II proton superconductor. We…

Astrophysics · Physics 2008-11-26 James Charbonneau , Ariel Zhitnitsky

This chapter provides a review of microscopic theories of pairing in nuclear systems and neutron stars. Special attention is given to the mean-field BCS theory and its extensions to include effects of polarization of the medium and…

Nuclear Theory · Physics 2016-11-09 Armen Sedrakian , John W. Clark

We investigate the holographic superconductors immersed in an external magnetic field by using the analytical approach. We obtain the spatially dependent condensate solutions in the presence of the magnetism and find analytically that the…

High Energy Physics - Theory · Physics 2015-03-13 Xian-Hui Ge , Bin Wang , Shao-Feng Wu , Guo-Hong Yang

The implications of the root singularity of the vacuum polarization tensor near the first pair creation threshold on blackbody radiation are investigated for magnetic fields above the characteristic scale of quantum electrodynamics. We show…

High Energy Physics - Phenomenology · Physics 2025-12-19 Leah Folkerts , Reinhold Egger , Carsten Müller , Selym Villalba-Chávez

We study the effects of very strong magnetic fields on the equation of state (EOS) in multicomponent, interacting matter by developing a covariant description for the inclusion of the anomalous magnetic moments of nucleons. For the…

Astrophysics · Physics 2009-10-31 A. Broderick , M. Prakash , J. M. Lattimer

Several aspects of the magnetospheric physics of magnetars are summarized, including: GeV and hard X-ray emissions of magnetars, timing behaviors during magnetar outburst (soft X-ray observations), optical/IR observations of magnetars,…

High Energy Astrophysical Phenomena · Physics 2023-09-12 H. Tong

We advance a "Solar flare" model of magnetar activity, whereas a slow evolution of the magnetic field in the upper crust, driven by electron MHD (EMHD) flows, twists the external magnetic flux tubes, producing persistent emission, bursts…

High Energy Astrophysical Phenomena · Physics 2015-06-22 Maxim Lyutikov