scholarly journals Neutron star equation of state and the possibility of complex self-energy in Landau theory of a Fermi liquid in the presence of a strong, quantizing magnetic field

2006 ◽  
Vol 74 (1) ◽  
Author(s):  
Soma Mandal ◽  
Roni Saha ◽  
Sutapa Ghosh ◽  
Somenath Chakrabarty
Keyword(s):  
Magnetic Field ◽  
Neutron Star ◽  
Equation Of State ◽  
Fermi Liquid ◽  
Landau Theory ◽  
Self Energy ◽  
Quantizing Magnetic Field

scholarly journals Concept of Gravito-Rotational Acceleration and its Consequences for Compact Stellar Objects

2021 ◽  
Author(s):  
Mohamed Hassani
Keyword(s):  
Magnetic Field ◽  
Neutron Star ◽  
Equation Of State ◽  
Orbital Motion ◽  
Rotational Acceleration ◽  
Material Body ◽  
Stellar Objects ◽  
Gravitational Action ◽  
Theories Of Gravity ◽  
Previous Series

In a previous series of papers relating to the Combined Gravitational Action (CGA), we have exclusively studied orbital motion without spin. In the present paper, we apply CGA to any self-rotating material body, i.e., an axially spinning massive object, which itself may be locally seen as a gravito-rotational source because it is capable of generating the gravito-rotational acceleration, which seems to be unknown to previously existing theories of gravity. The consequences of such an acceleration are very interesting, particularly for Compact Stellar Objects. Independently of the equation of state, it is found that the critical and maximum internal magnetic field strength of a stable neutron star cannot exceed the value of 3x1018G.

scholarly journals Partially ionized layers of accreted envelopes of weakly and strongly magnetized neutron stars

2000 ◽  
Vol 177 ◽  
pp. 619-620 ◽  
Author(s):  
Alexander Potekhin ◽  
Gilles Chabrier ◽  
Yuri Shibanov
Keyword(s):  
Magnetic Field ◽  
Neutron Star ◽  
Equation Of State ◽  
Neutron Stars ◽  
Strong Field ◽  
Ionization Degree ◽  
Occupation Numbers ◽  
Partially Ionized

AbstractWe study equilibrium properties of partially ionized hydrogen atmospheres and subphotospheric layers of weakly (with magnetic fieldB≪ 109G) and strongly (B≫ 1010G) magnetized neutron stars. In both weak- and strong-field cases, the ionization degree, atomic occupation numbers, and equation of state are calculated. These results are used to calculate opacities of neutron-star atmospheres.

scholarly journals Recycled pulsars with multipolar magnetospheres from accretion-induced magnetic burial

2020 ◽  
Vol 499 (3) ◽  
pp. 3243-3254
Author(s):  
A G Suvorov ◽  
A Melatos
Keyword(s):  
Magnetic Field ◽  
Neutron Star ◽  
Equation Of State ◽  
Neutron Stars ◽  
Field Line ◽  
Dipole Field ◽  
Multipole Moments ◽  
Millisecond Pulsars ◽  
The Magnetic Field ◽  
Field Strengths

ABSTRACT Many millisecond pulsars are thought to be old neutron stars spun up (‘recycled’) during an earlier accretion phase. They typically have relatively weak (≲109 G) dipole field strengths, consistent with accretion-induced magnetic burial. Recent data from the Neutron Star Interior Composition Explorer indicate that hotspots atop the recycled pulsar PSR J0030–0451 are not antipodal, so that the magnetic field cannot be that of a centred dipole. In this paper it is shown that multipolarity is naturally expected in the burial scenario because of equatorial field line compression. Grad–Shafranov equilibria are constructed to show how magnetic multipole moments can be calculated in terms of various properties, such as the amount of accreted mass and the crustal equation of state.

Quantizing Magnetic Field and Quark-Hadron Phase Transition in a Neutron Star

1997 ◽  
Vol 79 (12) ◽  
pp. 2176-2179 ◽  
Author(s):  
Debades Bandyopadhyay ◽  
Somenath Chakrabarty ◽  
Subrata Pal
Keyword(s):  
Magnetic Field ◽  
Phase Transition ◽  
Neutron Star ◽  
Hadron Phase ◽  
Quantizing Magnetic Field

Equation of state of an electron gas and theory of the thermal voltage in a quantizing magnetic field

1998 ◽  
Vol 32 (3) ◽  
pp. 261-262
Author(s):  
B. M. Askerov ◽  
M. M. Machmudov ◽  
Kh. A. Gasanov
Keyword(s):  
Magnetic Field ◽  
Equation Of State ◽  
Electron Gas ◽  
Quantizing Magnetic Field ◽  
Thermal Voltage

scholarly journals Binary neutron star mergers and short gamma-ray bursts: Effects of magnetic field orientation, equation of state, and mass ratio

2016 ◽  
Vol 94 (6) ◽  
Author(s):  
Takumu Kawamura ◽  
Bruno Giacomazzo ◽  
Wolfgang Kastaun ◽  
Riccardo Ciolfi ◽  
Andrea Endrizzi ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Neutron Star ◽  
Equation Of State ◽  
Gamma Ray ◽  
Gamma Ray Bursts ◽  
Mass Ratio ◽  
Field Orientation ◽  
Magnetic Field Orientation ◽  
Binary Neutron Star

scholarly journals Detectability of Continuous Gravitational Waves from Magnetically Deformed Neutron Stars

Galaxies ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 101
Author(s):  
Jacopo Soldateschi ◽  
Niccolò Bucciantini
Keyword(s):  
Magnetic Field ◽  
Neutron Star ◽  
Equation Of State ◽  
Magnetic Fields ◽  
Neutron Stars ◽  
Gravitational Waves ◽  
Nuclear Physics ◽  
Equations Of State ◽  
The Galaxy ◽  
The Magnetic Field

Neutron stars are known to contain extremely powerful magnetic fields. Their effect is to deform the shape of the star, leading to the potential emission of continuous gravitational waves. The magnetic deformation of neutron stars, however, depends on the geometry and strength of their internal magnetic field as well as on their composition, described by the equation of state. Unfortunately, both the configuration of the magnetic field and the equation of state of neutron stars are unknown, and assessing the detectability of continuous gravitational waves from neutron stars suffers from these uncertainties. Using our recent results relating the magnetic deformation of a neutron star to its mass and radius—based on models with realistic equations of state currently allowed by observational and nuclear physics constraints—and considering the Galactic pulsar population, we assess the detectability of continuous gravitational waves from pulsars in the galaxy by current and future gravitational waves detectors.

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