English
Related papers

Related papers: Thermalisation time and specific heat of neutron s…

200 papers

We analyse the effect of neutron superfluidity on the cooling time of inner crust matter in neutron stars, in the case of a rapid cooling of the core. The specific heat of the inner crust, which determines the thermal response of the crust,…

Nuclear Theory · Physics 2008-11-26 C. Monrozeau , J. Margueron , N. Sandulescu

We investigate the thermal properties of the inner crust of a neutron star using the Hartree-Fock-Bogoliubov (HFB) formalism at finite temperature. We compare our results with the ones obtained solving the same equations, but within the BCS…

Nuclear Theory · Physics 2014-03-21 A. Pastore

We analyse the temperature dependence of pairing correlations in the inner crust matter of neutron stars. The study is done in a finite-temperature HFB approach and by using a zero range pairing force adjusted to the pairing properties of…

Nuclear Theory · Physics 2009-11-10 N. Sandulescu

Superfluidity in the crust is a key ingredient for the cooling properties of proto-neutron stars. Present theoretical calculations employ the quasi-particle mean-field Hartree-Fock-Bogoliubov theory with temperature dependent occupation…

Nuclear Theory · Physics 2015-11-03 S. Burrello , F. Gulminelli , F. Aymard , M. Colonna , Ad. R. Raduta

The crust of a neutron star is known to melt at a temperature that increases with increasing matter density, up to about $10^{10}$ K. At such high temperatures and beyond, the crustal ions are put into collective motion and the associated…

High Energy Astrophysical Phenomena · Physics 2023-09-06 H. Dinh Thi , A. F. Fantina , F. Gulminelli

In this review paper we discuss the effects of pairing correlations on inner crust matter in the density region where nuclear clusters are supposed to coexist with nonlocalised neutrons. The pairing correlations are treated in the framework…

Nuclear Theory · Physics 2012-01-16 Jérôme Margueron , N. Sandulescu

We calculate the specific heat of the inner crust of neutron stars within a local-density approximation to an improved relativistic Hartree-Bogoliubov theory. Non-uniformness of the system enhances the specific heat in particular at low…

Nuclear Theory · Physics 2009-11-07 Takuya Nakano , Masayuki Matsuzaki

As a neutron star spins down, the nuclear matter continuously is converted into quark matter due to the core density increase and then latent heat is released. We have investigated the thermal evolution of neutron stars undergoing such…

Astrophysics · Physics 2008-11-26 kang Miao , Zheng Xiaoping

Context. In the cooling process of a non-accreting neutron star, the composition and properties of the crust are thought to be fixed at the finite temperature where nuclear reactions fall out of equilibrium. A lower estimation for this…

High Energy Astrophysical Phenomena · Physics 2020-03-11 T. Carreau , F. Gulminelli , N. Chamel , A. F. Fantina , J. M. Pearson

We describe a new method to incorporate thermonuclear heating in the envelope of accreting neutron star into long term simulations of their thermal evolution. We obtain boundary conditions for the heat exchange between the envelope and the…

High Energy Astrophysical Phenomena · Physics 2025-09-01 Martin Nava-Callejas , Dany Page , Yuri Cavecchi

Globally neutral neutron stars, obtained from the solution of the called Einstein-Maxwell-Thomas-Fermi equations that account for all the fundamental interactions, have been recently introduced. These configurations have a more general…

High Energy Astrophysical Phenomena · Physics 2015-06-23 S. M. de Carvalho , R. Negreiros , Jorge A. Rueda , Remo Ruffini

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 conducted a study on the thermal properties of stellar matter with the nuclear energy density functional BCPM. This functional is based on microscopic Brueckner-Hartree-Fock calculations and has demonstrated success in describing cold…

Nuclear Theory · Physics 2024-07-17 Clara Dehman , Mario Centelles , Xavier Viñas

In this work we revisit the thermal relaxation process for neutron stars. Such process is associated with the thermal coupling between the core and the crust of neutron stars. The thermal relaxation, which takes place at around 10 -- 100…

High Energy Astrophysical Phenomena · Physics 2020-10-07 Thiago Sales , Odilon Lourenço , Mariana Dutra , Rodrigo Negreiros

The inner crust of neutron stars, formed of a crystal lattice of uclear clusters immersed in a sea of unbound neutrons, may be the nique example of periodic nuclear systems. We have calculated the neutron specific heat in the shallow part…

Nuclear Theory · Physics 2009-01-21 Nicolas Chamel , Jérôme Margueron , Elias Khan

Recent observations have found several candidates for old warm neutron stars whose surface temperatures are above the prediction of the standard neutron star cooling scenario, and thus require some heating mechanism. Motivated by these…

High Energy Astrophysical Phenomena · Physics 2020-02-20 Keisuke Yanagi , Natsumi Nagata , Koichi Hamaguchi

We develop a phenomenological statistical model for dilute star matter at finite temperature, in which free nucleons are treated within a mean-field approximation and nuclei are considered to form a loosely interacting cluster gas. Its…

Nuclear Theory · Physics 2010-12-24 Ad. R. Raduta , F. Gulminelli

We study the properties of hot beta-stable nuclear matter using equations of state derived within the Brueckner-Hartree-Fock approach at finite temperature including consistent three-body forces. Simple and accurate parametrizations of the…

Nuclear Theory · Physics 2019-12-02 Jia-Jing Lu , Zeng-Hua Li , G. F. Burgio , H. -J Schulze

A promising probe to unmask particle dark matter is to observe its effect on neutron stars, the prospects of which depend critically on whether captured dark matter thermalizes in a timely manner with the stellar core via repeated…

High Energy Physics - Phenomenology · Physics 2021-03-03 Raghuveer Garani , Aritra Gupta , Nirmal Raj

The thermal evolution of isothermal neutron stars is studied with matter both in the hadronic phase as well as in the mixed phase of hadronic matter and strange quark matter. In our models, the dominant early-stage cooling process is…

High Energy Astrophysical Phenomena · Physics 2011-12-09 Shaoyu Yin , J. J. R. M. van Heugten , Jeroen Diederix , Maarten Kater , Jacco Vink , H. T. C. Stoof
‹ Prev 1 2 3 10 Next ›