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Related papers: Spin-down of compact stars and energy release of a…

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It is well known that neutron stars spin down due to magnetic dipole radiation. The deconfinement phase transition of hadron matter to quark matter is expected to occur in the dense cores of the stars during spin-down. The phase transition…

High Energy Astrophysical Phenomena · Physics 2010-06-02 Miao Kang

As a neutron star spins down, its core density increase, changing the relative equilibrium concentration, and causing deconfinement phase transition as well. hadron matter are converted into quark matter in the interior, which enhances the…

High Energy Astrophysical Phenomena · Physics 2015-03-19 Wei Wei , Xiao-Ping Zheng

The deconfinement phase transition will lead to the release of latent heat during spins down of neutron stars if the transition is the first-order one.We have investigated the thermal evolution of neutron stars undergoing such deconfinement…

Astrophysics · Physics 2008-11-26 Miao Kang , Nana Pan , Xiaodong Wang

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

As neutron stars spin-down and contract, the deconfinement phase transition can continue to occur, resulting in energy release(so-called deconfinement heating) in case of the first-order phase transition. The thermal evolution of neutron…

Solar and Stellar Astrophysics · Physics 2010-04-30 Kang Miao , Wang Xiao-dong , Zheng Xiao-ping

The thermal evolution of neutron stars is coupled to their spin down and the resulting changes in structure and chemical composition. This coupling correlates stellar surface temperatures with rotational state as well as time. We report an…

Astrophysics · Physics 2009-06-23 Morten Stejner , Fridolin Weber , Jes Madsen

In this paper we investigate quark deconfinement in neutrons stars and their mergers, focusing on the effects of higher orders for the phase transition between hadronic and quark matter. The different descriptions we use to describe matter…

High Energy Astrophysical Phenomena · Physics 2026-03-02 P. Hammond , A. Clevinger , M. Albino , V. Dexheimer , S. Bernuzzi , C. Brown , W. Cook , B. Daszuta , J. Fields , E. Grundy , C. Providência , D. Radice , A. Steiner

We study the deconfinement transition of hadronic matter into quark matter in neutron star conditions in the light of color superconductivity. Deconfinement is considered to be a first order phase transition that conserves color and flavor.…

Astrophysics · Physics 2008-11-26 G. Lugones , I. Bombaci

We study rotating hybrid stars, with particular emphasis on the effect of spin on the deconfinement phase transition and star properties. Our analysis is based on a hybrid equation of state with a phase transition from hadronic matter…

We study properties of compact stars with the deconfinement phase transition in their interiors. The equation of state of cold baryon-rich matter is constructed by combining a relativistic mean-field model for the hadronic phase and the MIT…

High Energy Physics - Phenomenology · Physics 2009-11-07 I. N. Mishustin , M. Hanauske , A. Bhattacharyya , L. M. Satarov , H. Stoecker , W. Greiner

We study the quark deconfinement phase transition in hot $\beta$-stable hadronic matter. Assuming a first order phase transition, we calculate the enthalpy per baryon of the hadron-quark phase transition. We calculate and compare the…

Solar and Stellar Astrophysics · Physics 2014-11-20 I. Bombaci , D. Logoteta , P. K. Panda , C. Providencia , I. Vidana

We study the properties of strange quark matter in equilibrium with normal nuclear matter. Instead of using the conventional bag model in quark sector, we achieve the confinement by a density-dependent quark mass derived from in-medium…

Astrophysics · Physics 2008-11-26 G. X. Peng , A. Li , U. Lombardo

A phase of strong interacting matter with deconfined quarks is expected in the core of massive neutron stars. We investigate the quark deconfinement phase transition in cold (T = 0) and hot beta-stable hadronic matter. Assuming a first…

High Energy Astrophysical Phenomena · Physics 2016-04-20 Ignazio Bombaci , Domenico Logoteta , Isaac Vidana , Constanca Providencia

For the past 20 years it had been thought that the coexistence phase of the confined hadronic and quark matter phases, assumed to be a first order transition, was strictly excluded from neutron stars. This, however, was due to a seemingly…

Astrophysics · Physics 2007-05-23 Fridolin Weber , Norman K. Glendenning , Shouyong Pei

We study the deconfinement transition of hadronic matter into quark matter under neutron star conditions assuming color and flavor conservation during the transition. We use a two-phase description. For the hadronic phase we use different…

High Energy Astrophysical Phenomena · Physics 2009-09-02 G. Lugones , A. G. Grunfeld , N. N. Scoccola , C. Villavicencio

We consider the energy release associated with first-order transition by Gibbs construction and present such energy release as an accumulation of a series of tiny binding energy differences between over-compressed states and stable ones.…

High Energy Physics - Phenomenology · Physics 2008-12-13 Zheng Xiaoping , Zhang Li , Zhou Xia , Kang Miao

Using the formalism of general relativity for axially symmetric gravitational fields and their sources - rotating compact stars - a perturbation theory with respect to angular velocity is developed and physical quantities such as mass,…

Astrophysics · Physics 2010-11-19 E. Chubarian , H. Grigorian , G. Poghosyan , D. Blaschke

We discuss the effect of rapid rotation on the phase diagram of hadronic matter. The energy dispersion relation is shifted by an effective chemical potential induced by rotation. This suggests that rotation should lower the critical…

High Energy Physics - Phenomenology · Physics 2021-03-03 Yuki Fujimoto , Kenji Fukushima , Yoshimasa Hidaka

The phase transition calculations are utilized for an in-depth understanding of the thermodynamics of the deconfinement transition to perform the best analysis of the QCD phase diagram. The phenomenological justifications for a mathematical…

Nuclear Theory · Physics 2023-03-07 Mahboubeh Shahrbaf

We study the compact stars internal structure and observable characteristics alterations due to the quark deconfinement phase transition. To proceed with, we investigate the properties of isospin-asymmetric nuclear matter in the improved…

Solar and Stellar Astrophysics · Physics 2015-06-05 A. G. Alaverdyan , G. B. Alaverdyan , Sh. R. Melikyan
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