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Related papers: The magnetic structure of neutron stars and their …

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The thermal structure of neutron stars with magnetized envelopes is studied using modern physics input. The relation between the internal (T_i) and local surface temperatures is calculated and fitted by analytic expressions for magnetic…

Astrophysics · Physics 2007-05-23 A. Y. Potekhin , D. G. Yakovlev

The thermal structure of neutron star envelopes is discussed with emphasis on analytic results. Recent progress on the effect of chemical constitution and high magnetic fields on the opacities and the thermal structure is further reviewed…

Astrophysics · Physics 2007-05-23 J. Ventura , A. Y. Potekhin

Recently launched x-ray telescopes have discovered several candidate isolated neutron stars. The thermal radiation from these objects may potentially constrain our understanding of nuclear physics in a realm inaccessible to terrestrial…

Astrophysics · Physics 2009-10-30 Jeremy S. Heyl , Lars Hernquist

We study the thermal structure of neutron stars with magnetized envelopes composed of accreted material, using updated thermal conductivities of plasmas in quantizing magnetic fields, as well as equation of state and radiative opacities for…

Astrophysics · Physics 2009-11-07 A. Y. Potekhin , D. G. Yakovlev , G. Chabrier , O. Y. Gnedin

We study the thermal structure and evolution of magnetars as cooling neutron stars with a phenomenological heat source in an internal layer. We focus on the effect of magnetized (B > 10^{14} G) non-accreted and accreted outermost envelopes…

Solar and Stellar Astrophysics · Physics 2009-05-20 A. D. Kaminker , A. Y. Potekhin , D. G. Yakovlev , G. Chabrier

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

Assuming that the timescale of the magnetic field decay is approximately equal to that of the stellar cooling via neutrino emission, we obtain a one-to-one relationship between the effective surface thermal temperature and the inner…

High Energy Astrophysical Phenomena · Physics 2013-12-09 Z. F. Gao , N. Wang , Q. H. Peng

Near the surface of any neutron star there is a thin heat blanketing envelope that produces substantial thermal insulation of warm neutron star interiors and that relates the internal temperature of the star to its effective surface…

Solar and Stellar Astrophysics · Physics 2021-06-15 M. V. Beznogov , A. Y. Potekhin , D. G. Yakovlev

Neutron stars cool down during their lifetime through the combination of neutrino emission from the interior and photon cooling from the surface. Strongly magnetised neutron stars, called magnetars, are no exception, but the effect of their…

High Energy Astrophysical Phenomena · Physics 2023-01-18 Clara Dehman , José A. Pons , Daniele Viganò , Nanda Rea

A simple and well known model for thermal radiation spectra from a magnetized neutron star is further studied. The model assumes that the star is internally isothermal and possesses dipole magnetic field (B <= 1e14 G) in the outer…

High Energy Astrophysical Phenomena · Physics 2021-10-27 D. G. Yakovlev

We continue the study of the effects of a strong magnetic field on the temperature distribution in the crust of a magnetized neutron star (NS) and its impact on the observable surface temperature. Extending the approach initiated in Geppert…

Astrophysics · Physics 2009-11-11 U. Geppert , M. Kueker , Dany Page

We study thermal structure and evolution of magnetars as cooling neutron stars with a phenomenological heat source in a spherical internal layer. We explore the location of this layer as well as the heating rate that could explain high…

We develop an effective model for a neutron star with a magnetosphere. It takes into account the electromagnetic torques acting on the magnetic dipole, the friction forces between the crust and the core, and the gravitational corrections.…

Astrophysics · Physics 2009-10-30 H. Casini , R. Montemayor

We investigate the thermal emission from magnetic neutron star surfaces in which the cohesive effects of the magnetic field have produced the condensation of the atmosphere and the external layers. This may happen for sufficiently cool…

Astrophysics · Physics 2015-06-24 J. F. Perez--Azorin , J. A. Miralles , J. A. Pons

A neutron star is one of the possible end states of a massive star. It is compressed by gravity and stabilized by the nuclear degeneracy pressure. Despite its name, the composition of these objects is not exactly known. However, from the…

Nuclear Theory · Physics 2022-06-10 J. P. W. Diener

We investigate the influence of different magnetic field configurations on the temperature distribution in neutron star crusts. We consider axisymmetric dipolar fields which are either restricted to the stellar crust, ``crustal fields'', or…

Astrophysics · Physics 2009-11-10 U. Geppert , M. Kueker , D. Page

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

Neutron stars exhibit magnetic fields and densities far beyond those achievable in terrestrial laboratories, offering a natural probe of strongly interacting matter under extreme conditions. Using observationally anchored mass-radius…

Cosmology and Nongalactic Astrophysics · Physics 2026-01-13 Abriana Lyda , Prajwal MohanMurthy

In this work, we study the effect of strong magnetic fields on the equation of state (EoS) of warm, homogeneous, Neutron Star (NS) matter in beta equilibrium. NS matter is described within a relativistic mean field (RMF) approximation,…

Nuclear Theory · Physics 2024-07-04 Luigi Scurto , Valéria Carvalho , Helena Pais , Constança Providência

We show the existence of a strong trend between neutron star surface temperature and the dipolar component of the magnetic field extending through three orders of field magnitude, a range that includes magnetars, radio-quiet isolated…

Astrophysics · Physics 2008-11-26 J. A. Pons , B. Link , J. A. Miralles , U. Geppert
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