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相关论文: Hybrid magnetized stars within the Field Correlato…

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Using a quantum hadrodynamics (QHD) and MIT based models we construct hybrid stars within the Maxwell criteria of hadron-quark phase transition. We are able to produce a hybrid star with maximum mass of 2.15$M_\odot$. Furthermore, a…

高能物理 - 唯象学 · 物理学 2022-03-30 Luiz L. Lopes , Carline Biesdorf , Débora P. Menezes

Compact stars with strong magnetic fields (magnetars) have been observationally determined to have surface magnetic fields of order of 10^{14}-10^{15} G, the implied internal field strength being several orders larger. We study the equation…

高能天体物理现象 · 物理学 2017-03-22 Monika Sinha , Banibrata Mukhopadhyay , Armen Sedrakian

The main objective of this work is to study the structure, composition, and oscillation modes of color superconducting quark stars with intense magnetic fields. We adopted the MIT bag model within the color superconductivity CFL framework,…

高能天体物理现象 · 物理学 2022-05-18 Marcos Osvaldo Celi , Mauro Mariani , Milva Gabriela Orsaria , Lucas Tonetto

Magnetars are compact stars which are observationally determined to have very strong surface magnetic fields of the order of $10^{14}-10^{15}$G. The centre of the star can potentially have a magnetic field several orders of magnitude…

高能天体物理现象 · 物理学 2014-05-16 Ritam Mallick , Stefan Schramm

Stellar magnetic fields can be investigated using several, very complementary approaches. While conventional spectroscopy is capable of estimating the average magnetic strength of potentially complex field configurations thanks to its low…

We present several arguments which favor the scenario of two coexisting families of compact stars: hadronic stars and quark stars. Besides the well known hyperon puzzle of the physics of compact stars, a similar puzzle exists also when…

太阳与恒星天体物理 · 物理学 2016-03-23 Alessandro Drago , Andrea Lavagno , Giuseppe Pagliara , Daniele Pigato

Massive stars disproportionately influence their surroundings. How they form has only started to become clear recently through radiation gas dynamical simulations. However, until now, no simulation has simultaneously included both magnetic…

太阳与恒星天体物理 · 物理学 2015-03-17 Thomas Peters , Robi Banerjee , Ralf S. Klessen , Mordecai-Mark Mac Low

Stationary and axisymmetric solutions of relativistic rotating stars with strong mixed poloidal and toroidal magnetic fields are obtained numerically. Because of the mixed components of the magnetic field, the underlying stationary and…

高能天体物理现象 · 物理学 2014-11-13 Koji Uryu , Eric Gourgoulhon , Charalampos Markakis , Kotaro Fujisawa , Antonios Tsokaros , Yoshiharu Eriguchi

We investigate the possible sequels, for the hybrid compact stars consisting of nucleons, hyperons and three flavour color-flavor-locked quarks phase under global neutrality and chemical equilibrium conditions. The hadron equations of state…

核理论 · 物理学 2019-09-18 Suman Thakur , Shashi K Dhiman

In the presence of strong magnetic field reported to have been observed on the surface of some neutron stars and on what are called Magnetars, a host of physical phenomenon from the birth of a neutron star to free streaming neutrino cooling…

高能物理 - 唯象学 · 物理学 2007-05-23 Ashok Goyal

In this work, we have made a systematic study of how the gravitational wave frequency of the fundamental mode from compact stars is affected by anisotropic effects using realistic equations of state. Our study is an extension of the seminal…

广义相对论与量子宇宙学 · 物理学 2024-03-19 Elvis J. Aquino Curi , Luis B. Castro , Cesar V. Flores , César H. Lenzi

Composite hadronic states exhibit interesting properties in the presence of very intense magnetic fields, such as those conjectured to exist in the vicinity of certain astrophysical objects. We discuss three scenarios. (i) The presence of…

高能物理 - 唯象学 · 物理学 2009-10-22 Myron Bander , Hector Rubinstein

In this paper, we introduce a self-consistent mean field approximation to study the QCD phase transition and the structure of hybrid stars within the framework of NJL model. In our practice, a phenomenological parameter $\alpha$ is…

核理论 · 物理学 2022-04-27 Bing-Jun Zuo , Yong-Feng Huang , Hong-Tao Feng

We consider here quark matter equation of state in a relativistic harmonic confinement model at zero temperature. The same is considered to study phase transition of neutron matter to quark matter at high densities. This, along with a…

高能物理 - 唯象学 · 物理学 2009-10-28 S. B. Khadkikar , A. Mishra , H. Mishra

In this work, we investigate the properties of hadronic and quark matter that would allow for a first order phase transition between them within neutron stars. To this end, we use a parameterizable Relativistic Mean-Field (RMF) description…

高能天体物理现象 · 物理学 2025-09-10 Jan-Erik Christian , Ishfaq Ahmad Rather , Hosein Gholami , Marco Hofmann

We study the rotational properties of inverted hybrid stars (also termed cross stars), which have been recently proposed as a possible new class of compact stars characterized by an outer layer of quark matter and a core of hadrons, in an…

高能天体物理现象 · 物理学 2025-04-10 Rodrigo Negreiros , Chen Zhang , Renxin Xu

We study the hadron-quark phase transition in the interior of protoneutron stars. For the hadronic sector, we use a microscopic equation of state involving nucleons and hyperons derived within the finite-temperature…

天体物理学 · 物理学 2017-08-23 O. E. Nicotra

The magnetars are believed to be highly magnetized neutron stars having surface magnetic field 10^{14} - 10^{15} G. It is believed that at the center, the magnetic field may be higher than that at the surface. We study the effect of the…

高能天体物理现象 · 物理学 2013-02-15 Banibrata Mukhopadhyay , Monika Sinha

Magnetic perturbations to the frequencies of low degree, high radial order, axisymmetric pulsations in stellar models permeated by large scale magnetic fields are presented. Magnetic fields with dipolar, quadrupolar and a superposition of…

天体物理学 · 物理学 2008-11-26 M. S. Cunha

Strange quark matter in beta equilibrium at high densities is studied in a quark confinement model. Two equations of state are dynamically generated for the {\it same} set of model parameters used to describe the nucleon: one corresponds to…

天体物理学 · 物理学 2008-11-26 M. Malheiro , M. Fiolhais , A. R. Taurines
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