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Related papers: Neutron star cooling with microscopic equations of…

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We study the cooling of isolated neutron stars, employing different nuclear equations of state with or without active direct Urca process, and investigate the interplay with the nuclear pairing gaps. We find that a consistent description of…

High Energy Astrophysical Phenomena · Physics 2024-06-12 H. C. Das , Jin-Biao Wei , G. F. Burgio , H. -J. Schulze

We study the cooling of isolated neutron stars with particular regard to the importance of nuclear pairing gaps. A microscopic nuclear equation of state derived in the Brueckner-Hartree-Fock approach is used together with compatible neutron…

Nuclear Theory · Physics 2021-02-17 Jin-Biao Wei , Fiorella Burgio , Hans-Josef Schulze

Observation of cooling neutron stars can potentially provide information about the states of matter at supernuclear densities. We review physical properties important for cooling such as neutrino emission processes and superfluidity in the…

Astrophysics · Physics 2009-11-10 D. G. Yakovlev , C. J. Pethick

We study the cooling of isolated dark-matter-admixed neutron stars, employing a realistic nuclear equation of state and realistic nuclear pairing gaps, together with fermionic dark matter of variable particle mass and dark-matter fraction.…

High Energy Astrophysical Phenomena · Physics 2025-12-30 B. X. Zhou , H. C. Das , J. B. Wei , G. F. Burgio , Z. H. Li , H. -J. Schulze

We model the cooling of hybrid neutron stars combining a microscopic nuclear equation of state in the Brueckner-Hartree-Fock approach with different quark models. We then analyze the neutron star cooling curves predicted by the different…

Nuclear Theory · Physics 2020-10-12 J. -B. Wei , G. F. Burgio , H. -J. Schulze , and D. Zappalà

We model the thermal states of both isolated neutron stars and accreting neutron stars in X-ray transients in quiescence and confront them with observations. We use an equation of state and superfluid baryon gaps, which are consistently…

High Energy Astrophysical Phenomena · Physics 2018-01-31 M. Fortin , G. Taranto , G. F. Burgio , P. Haensel , H. -J. Schulze , J. L. Zdunik

We demonstrate that the existing neutron-star cooling data can be appropriately described within "the nuclear medium cooling scenario" including hyperons under the assumption that different sources have different masses. We use a stiff…

High Energy Astrophysical Phenomena · Physics 2018-11-14 Hovik Grigorian , Dmitry N. Voskresensky , Konstantin A. Maslov

We study the dependence of the cooling of isolated neutron stars on the magnitude of the $3P_2$ neutron gap. It is demonstrated that our ``Nuclear medium cooling scenario'' is in favor of a suppressed value of the $3P_2$ neutron gap.

Astrophysics · Physics 2007-05-23 H. Grigorian , D. N. Voskresensky

In the present work we used five different versions of the quark-meson coupling (QMC) model to compute astrophysical quantities related to the GW170817 event and to neutron star cooling process. Two of the models are based on the original…

We study the heat capacity and neutrino emission reactions (direct and modified Urca processes, nucleon-nucleon bremsstrahlung, Cooper pairing of nucleons) in matter of supranuclear density of the neutron star cores with superfluid neutrons…

Astrophysics · Physics 2011-02-16 D. G. Yakovlev , K. P. Levenfish , Yu. A. Shibanov

The impact of nuclear physics theories on cooling of isolated neutron stars is analyzed. Physical properties of neutron star matter important for cooling are reviewed such as composition, the equation of state, superfluidity of various…

The cooling theory of isolated neutron stars is reviewed. The main cooling regulators are discussed, first of all, operation of direct Urca process (or similar processes in exotic phases of dense matter) and superfluidity in stellar…

Astrophysics · Physics 2007-05-23 D. G. Yakovlev , O. Y. Gnedin , A. D. Kaminker , K. P. Levenfish , A. Y. Potekhin

The nuclear symmetry energy and its behaviour with density has been recently evaluated with enhanced value by PREX-2 experiment. This new values enables direct Urca neutrino emission process to be functioning in the dense matter inside…

High Energy Astrophysical Phenomena · Physics 2023-09-06 Trisha Sarkar , Vivek Baruah Thapa , Monika Sinha

A general overview of the main physical processes driving the cooling of an isolated neutron star is presented. Among the most important ones are the various possible neutrino emission processes and the occurrence of baryon pairing. Special…

Astrophysics · Physics 2007-05-23 Dany Page

We perform cooling simulations for isolated neutron stars using recently developed equations of state for their core. The equations of state are obtained from new parametrizations of the FSU2 relativistic mean-field functional that…

High Energy Astrophysical Phenomena · Physics 2018-08-22 Rodrigo Negreiros , Laura Tolos , Mario Centelles , Angels Ramos , Veronica Dexheimer

The cooling process of a protoneutron star is investigated with focus on its sensitivity to properties of hot and dense matter. An equation of state, which includes the nucleon effective mass and nuclear symmetry energy at twice the…

High Energy Astrophysical Phenomena · Physics 2019-06-20 Ken'ichiro Nakazato , Hideyuki Suzuki

We study thermal evolution of isolated neutron stars in scalar-tensor theories for the first time. Whether the rapid cooling due to the direct Urca process occurs or not is an interesting question in the viewpoint of the temperature…

General Relativity and Quantum Cosmology · Physics 2021-07-27 Akira Dohi , Ryotaro Kase , Rampei Kimura , Kazuhiro Yamamoto , Masa-aki Hashimoto

We study the dependence of the cooling of isolated neutron stars on the magnitude of the $3P_2$ neutron gap. It is demonstrated that our ``nuclear medium cooling'' scenario is in favor of a suppressed value of the $3P_2$ neutron gap.

Astrophysics · Physics 2016-08-30 H. Grigorian , D. N. Voskresensky

We study the thermal evolution of neutron stars described within the equation of state with induced surface tension (IST) that reproduces properties of normal nuclear matter, fulfills the proton flow constraint, provides a high-quality…

High Energy Astrophysical Phenomena · Physics 2021-04-16 Stefanos Tsiopelas , Violetta Sagun

Cooling of neutron stars (NSs) with the cores composed of neutrons, protons, and electrons is analyzed. The main cooling regulators are discussed: opening of direct Urca process in a NS central kernel; superfluidity of nucleons in NS…

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