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Strange quark matter could be found in the core of neutron stars or forming strange quark stars. As is well known, these astrophysical objects are endowed with strong magnetic fields which affect the microscopic properties of matter and…

Astrophysics · Physics 2008-12-18 R. Gonzalez Felipe , A. Perez Martinez , H. Perez Rojas , M. Orsaria

The r-mode instability, believed to limit the rotation speed of compact stars, can provide empirical confirmation for the existence of stable deconfined phases of quark matter that are predicted by weak coupling calculations in Quantum…

Nuclear Theory · Physics 2015-06-11 Gautam Rupak , Prashanth Jaikumar

Strange quark matter (SQM) may be the true ground state of hadronic matter, indicating that the observed pulsars may actually be strange stars, but not neutron stars. According to this SQM hypothesis, the existence of a hydrostatically…

High Energy Astrophysical Phenomena · Physics 2017-05-11 J. J. Geng , Y. F. Huang , T. Lu

This short review aims at giving a brief overview of the various states of matter that have been suggested to exist in the ultra-dense centers of neutron stars. Particular emphasis is put on the role of quark deconfinement in neutron stars…

Solar and Stellar Astrophysics · Physics 2014-08-04 Fridolin Weber , Gustavo A. Contrera , Milva G. Orsaria , William Spinella , Omair Zubairi

If the surface tension of quark matter is low enough, quark matter is not self bound. At sufficiently low pressure and temperature, it will take the form of a crystal of positively charged strangelets in a neutralizing background of…

Nuclear Theory · Physics 2015-06-03 Mark G. Alford , Sophia Han , Sanjay Reddy

The description of the heaviest neutron stars observed in Nature depends on the understanding of the physical concepts present in General Relativity and Quantum Chromodynamics. In this work, we review the basic concepts need to describe…

High Energy Physics - Phenomenology · Physics 2020-08-11 V. P. Goncalves , L. Lazzari

The assumption underlying the existence of quark stars is based on the Bodmer-Witten conjecture. These authors have claimed that it is possible that the interior of a neutron-like star does not consist primarily of hadrons, but rather of…

Nuclear Theory · Physics 2013-08-12 J. R. Torres , D. P. Menezes , V. Dexheimer

Calculations of the properties of rotating strange stars with crusts are performed within the framework of general relativity. We employ an equation of state (EOS) of strange quark matter based on the MIT Bag Model with massive strange…

Astrophysics · Physics 2014-10-13 J. L. Zdunik , P. Haensel , E. Gourgoulhon

With central densities way above the density of atomic nuclei, neutron stars contain matter in one of the densest forms found in the universe. Depending of the density reached in the cores of neutron stars, they may contain stable phases of…

Astrophysics · Physics 2010-12-06 Fridolin Weber , Matthew Meixner , Rodrigo P. Negreiros , Manuel Malheiro

It is generally agreed on that the tremendous densities reached in the centers of neutron stars provide a high-pressure environment in which numerous novel particles processes are likely to compete with each other. These processes range…

Astrophysics · Physics 2008-11-26 Fridolin Weber

In this talk we discuss possible signatures for the existence of strange quark matter stars (strange stars).

Astrophysics · Physics 2007-05-23 I. Bombaci

The physics of strange quark matter in the core of compact stars and recent compact star data is reviewed. Emphasis is put on the possible existence of a third family of strange quark stars.

Astrophysics · Physics 2009-11-10 Jurgen Schaffner-Bielich

Strange stars are one of the possible compact stellar objects that can be formed after a supernova collapse. We consider a model of strange star having an inner core in the color-flavor locked phase surmounted by a crystalline color…

Solar and Stellar Astrophysics · Physics 2015-12-16 Massimo Mannarelli , Giulia Pagliaroli , Alessandro Parisi , Luigi Pilo , Francesco Tonelli

Strange quark matter, which is composed of u, d, and s quarks, could be the true ground of matter. According to this hypothesis, compact stars may actually be strange quark stars, and there may even be stable strange quark dwarfs and…

High Energy Astrophysical Phenomena · Physics 2022-01-11 Xu Wang , Abudushataer Kuerban , Jin-Jun Geng , Fan Xu , Xiao-Li Zhang , Bing-Jun Zuo , Wen-Li Yuan , Yong-Feng Huang

Motivated by recent suggestions that strange stars can be responsible for glitches and other observational features of pulsar, we review some possible equations of state and their implications for models of neutron, hybrid and strange…

Astrophysics · Physics 2009-11-11 D. P. Menezes , D. B. Melrose

Pulsar-like objects are extremely compact, with an average density that exceeds nuclear saturation density, where the fundamental strong interaction plays an essential role, particularly in the low-energy regime. The internal structures and…

High Energy Astrophysical Phenomena · Physics 2025-11-04 Chengjun Xia , Xiaoyu Lai , Renxin Xu

It is suggested in this paper that the `bare' strange star might be not bare, and there could be a magnetosphere around it. As a strange star might be an intensely magnetized rotator, the induced unipolar electric field would be large…

Astrophysics · Physics 2016-08-30 Ren Xin Xu , Guo Jun Qiao

Astrophysicists distinguish between three different types of compact stars. These are white dwarfs, neutron stars, and black holes. The former contain matter in one of the densest forms found in the Universe. This feature, together with the…

Astrophysics · Physics 2007-05-23 Fridolin Weber , Andreu Torres i Cuadrat , Alexander Ho , Philip Rosenfield

Both neutron stars and strange stars are capable of supporting fast rotations observed in pulsars. On the basis of this it has been argued that some of the pulsars could be strange stars. We investigate whether strange stars can sustain…

Astrophysics · Physics 2007-05-23 Sushan Konar

It was conjectured that the basic units of the ground state of bulk strong matter may be strange-clusters called strangeons, and they can form self-bound strangeon stars that are highly compact. Strangeon stars can develop a strange quark…

Nuclear Theory · Physics 2024-01-09 Chen Zhang , Yong Gao , Cheng-Jun Xia , Renxin Xu