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Related papers: Magnetized Neutron Stars

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We study the magnetosphere of a slowly rotating magnetized neutron star subject to toroidal oscillations in the relativistic regime. Under the assumption of a zero inclination angle between the magnetic moment and the angular momentum of…

High Energy Astrophysical Phenomena · Physics 2015-05-18 V. S. Morozova , B. J. Ahmedov , O. Zanotti

We have solved numerically the general relativistic induction equations in the interior background spacetime of a slowly rotating magnetized neutron star. The analytic form of these equations was discussed in a recent paper (Rezzolla et al…

Astrophysics · Physics 2009-11-07 O. Zanotti , L. Rezzolla

We discuss the Mass -Radius diagram for static neutron star models obtained by the numerical solution of modified Tolman-Oppenheimer-Volkoff equations in $f(R)$ gravity where the Lagrangians $f(R)=R+\alpha R^2 (1+\gamma R)$ and…

General Relativity and Quantum Cosmology · Physics 2016-01-13 Salvatore Capozziello , Mariafelicia De Laurentis , Ruben Farinelli , Sergei D. Odintsov

We solve the Einstein-Maxwell-Klein-Gordon system of equations and derive a compact, static axially symmetric magnetized object which is electrically neutral and made of two complex massive charged scalar fields. We describe several…

General Relativity and Quantum Cosmology · Physics 2022-11-23 Víctor Jaramillo , Darío Núñez

We explore the thermal and magnetic-field structure of a late-stage proto-neutron star. We find the dominant contribution to the entropy in different regions of the star, from which we build a simplified equation of state for the hot…

High Energy Astrophysical Phenomena · Physics 2021-02-24 S. K. Lander , P. Haensel , B. Haskell , J. L. Zdunik , M. Fortin

We systematically study the properties of pure nucleonic and hyperonic magnetic stars using a density-dependent relativistic mean field (DD-RMF) equations of state. We explore several parameter sets and hyperon coupling schemes within the…

Nuclear Theory · Physics 2021-09-09 I. A. Rather , Usuf Rahaman , V. Dexheimer , A. A. Usmani , S. K. Patra

Following the general formalism presented by Rezzolla, Ahmedov and Miller (MNRAS, 322, 723 2001), we here derive analytic solutions of the electromagnetic fields equations in the internal and external background spacetime of a slowly…

General Relativity and Quantum Cosmology · Physics 2007-05-23 L. Rezzolla , B. J. Ahmedov , J. C. Miller

In this review we discuss self-consistent methods to calculate the global structure of strongly magnetised neutron stars within the general-relativistic framework. We outline why solutions in spherical symmetry cannot be applied to strongly…

Nuclear Theory · Physics 2021-09-01 Debarati Chatterjee , Jerome Novak , Micaela Oertel

We investigate in this paper the structures of neutron stars under the strong magnetic field in the framework of $f(T)$ gravity where $T$ denotes the scalar torsion. The TOV equations in this theory of gravity have been considered and…

General Physics · Physics 2017-09-28 M. G. Ganiou , C. Aïnamon , M. J. S. Houndjo , J. Tossa

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 study the equation of state, polarization and radiation properties for nonideal, strongly magnetized plasmas which compose outer envelopes of magnetic neutron stars. Detailed calculations are performed for partially ionized hydrogen…

Astrophysics · Physics 2008-11-26 A. Y. Potekhin , G. Chabrier , D. Lai , W. C. G. Ho , M. van Adelsberg

The densities in the cores of the neutron stars (NSs) can reach several times that of the nuclear saturation density. The exact nature of matter at these densities is still virtually unknown. We consider a number of proposed,…

High Energy Astrophysical Phenomena · Physics 2024-02-16 Zenia Zuraiq , Banibrata Mukhopadhyay , Fridolin Weber

Magnetic fields play a crucial role in many astrophysical scenarios and, in particular, are of paramount importance in the emission mechanism and evolution of Neutron Stars (NSs). To understand the role of the magnetic field in compact…

High Energy Astrophysical Phenomena · Physics 2015-06-18 A. G. Pili , N. Bucciantini , L. Del Zanna

We have recently developed a neutron star model fulfilling global and not local charge neutrality, both in the static and in the uniformly rotating cases. The model is described by the coupled Einstein-Maxwell-Thomas- Fermi (EMTF)…

Solar and Stellar Astrophysics · Physics 2015-06-23 Riccardo Belvedere , Jorge Armando Rueda , Remo Ruffini

We investigate the effects of strong magnetic fields upon the gross properties of neutron and protoneutron stars. In our calculations, the neutron star matter was approximated by the pure neutron matter. Using the lowest order constrained…

Solar and Stellar Astrophysics · Physics 2015-06-11 Gholam Hossein Bordbar , Zeinab Rezaei

We derive an equation of state for magnetized charge neutral nuclear matter relevant for neutron star structure. The calculations are performed within an effective chiral model based on generalization of sigma model with nonlinear self…

Nuclear Theory · Physics 2018-11-16 Tuhin Malik , Debashree Sen , T. K. Jha , Hiranmaya Mishra

Neutron stars are discussed as laboratories of physics of strong gravitational fields. The mass of a neutron star is split into matter energy and gravitational field energy contributions. The energy of the gravitational field of neutron…

General Relativity and Quantum Cosmology · Physics 2007-05-23 M. Dyrda , B. Kinasiewicz , M. Kutschera , A. Szmaglinski

Just as a rotating magnetised neutron star has material pulled away from its surface to populate a magnetosphere, a similar process can occur as a result of neutron-star pulsations rather than rotation. This is of interest in connection…

General Relativity and Quantum Cosmology · Physics 2009-11-13 Ernazar B. Abdikamalov , Bobomurat J. Ahmedov , John C. Miller

As we know, the effect of strong magnetic field causes the anisotropy for the magnetized compact objects. Therefore, in this paper, we have studied the structure properties of anisotropic case of magnetized neutron star. We have derived the…

General Relativity and Quantum Cosmology · Physics 2022-02-04 Gholam Hossein Bordbar , Mohammad Karami

We investigate the effects of the purely toroidal magnetic field on the equilibrium structures of the relativistic stars. The master equations for obtaining equilibrium solutions of relativistic rotating stars containing purely toroidal…

Astrophysics · Physics 2008-11-26 Kenta Kiuchi , Shijun Yoshida