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Strange quark matter (SQM) may be the true ground state of matter. According to this SQM hypothesis, the observed neutron stars actually should all be strange quark stars. But distinguishing between neutron stars and strange quark stars by…

高能天体物理现象 · 物理学 2021-10-01 Xu Wang , Yong-Feng Huang , Bing Li

We investigate the properties of stars participating in double compact star merger events considering interacting model of stable strange quark matter. We model the matter making it compatible with the recent astrophysical observations of…

高能天体物理现象 · 物理学 2022-05-17 Anil Kumar , Vivek Baruah Thapa , Monika Sinha

The LIGO/VIRGO detection of the gravitational waves from a binary merger system, GW170817, has put a clean and strong constraint on the tidal deformability of the merging objects. From this constraint, deep insights can be obtained in…

高能天体物理现象 · 物理学 2018-05-02 Enping Zhou , Xia Zhou , Ang Li

Recently, it was shown that quark matter with only $u$ and $d$ quarks ($ud$QM) can be the ground state of matter for baryon numbers $A>A_\textrm{min}$ with $A_{\rm min}\gtrsim 300$. In this paper, we explore $ud$ quark stars ($ud$QSs) that…

高能天体物理现象 · 物理学 2020-02-19 Chen Zhang

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…

高能天体物理现象 · 物理学 2017-05-11 J. J. Geng , Y. F. Huang , T. Lu

The existence of self-bound strange stars is a long-standing mystery in astrophysics. Future astrophysical data, even with improved precision, may not allow us to discriminate them from neutron stars, given the uncertainties in…

广义相对论与量子宇宙学 · 物理学 2023-11-28 Bikram Keshari Pradhan , Swarnim Shirke , Debarati Chatterjee

This paper gives an overview of the properties of all possible equilibrium sequences of compact strange-matter stars with nuclear crusts, which range from strange stars to strange dwarfs. In contrast to their non-strange counterparts,…

天体物理学 · 物理学 2007-05-23 F. Weber , Ch. Schaab , M. K. Weigel , N. K. Glendenning

Strange stars ought to exist in the universe according to the strange quark matter hypothesis, which states that matter made of roughly equal numbers of up, down, and strange quarks could be the true ground state of baryonic matter rather…

高能天体物理现象 · 物理学 2023-04-20 Shu-Hua Yang , Chun-Mei Pi , Xiao-Ping Zheng , Fridolin Weber

We reexamine the surface composition of strange stars. Strange quark stars are hypothetical compact stars which could exist if strange quark matter was absolutely stable. It is widely accepted that they are characterized by an enormous…

核理论 · 物理学 2007-05-23 Prashanth Jaikumar , Sanjay Reddy , Andrew W. Steiner

We compute the tidal deformabilities for neutron star merger for equations of state with a strong first order phase transition producing a new separate branch in the mass-radius diagram. A case is found where all three possible pairs of…

高能天体物理现象 · 物理学 2019-02-06 Jan-Erik Christian , Andreas Zacchi , Jürgen Schaffner-Bielich

We study the tidal deformability of bare quark stars and hybrid compact stars composed of a quark matter core in general relativity, assuming that the deconfined quark matter exists in a crystalline color superconducting phase. We find that…

高能天体物理现象 · 物理学 2017-06-07 S. Y. Lau , P. T. Leung , L. -M. Lin

According to the hypothesis that strange quark matter may be the true ground state of matter at extremely high densities, strange quark stars should be stable and could exist in the Universe. It is possible that pulsars may actually be…

高能天体物理现象 · 物理学 2024-08-26 Xiao-Li Zhang , Yong-Feng Huang , Ze-Cheng Zou

White dwarfs are the remnants of stars not massive enough to become supernovae. This review explores the concept of strange dwarfs, a unique class of white dwarfs which contain cores of strange quark matter. Strange dwarfs have different…

太阳与恒星天体物理 · 物理学 2024-12-06 Francesco Di Clemente , Alessandro Drago , Giuseppe Pagliara

We investigate the dynamical behavior of strange quark matter (SQM) objects, such as stars and planets, when subjected to radial oscillations induced by tidal interactions in stellar systems. Our study demonstrates that SQM objects can…

高能天体物理现象 · 物理学 2025-07-16 Joanna Jałocha , Łukasz Bratek

The ground state of matter may be strange quark matter (SQM), not hadronic matter. A whole sequence of SQM objects, ranging from strange quark stars and strange quark dwarfs to strange quark planets, can stably exist according to this SQM…

太阳与恒星天体物理 · 物理学 2022-07-04 Abdusattar Kurban , Yong-Feng Huang , Jin-Jun Geng , Hong-Shi Zong

The true ground state of hadronic matter may be strange quark matter (SQM). Consequently, the observed pulsars may actually be strange quark stars, but not neutron stars. However, proving or disproving the SQM hypothesis still remains to be…

高能天体物理现象 · 物理学 2017-11-01 Y. F. Huang , Y. B. Yu

We use gravitational-wave observations of the binary neutron star merger GW170817 to explore the tidal deformabilities and radii of neutron stars. We perform Bayesian parameter estimation with the source location and distance informed by…

高能天体物理现象 · 物理学 2018-11-01 Soumi De , Daniel Finstad , James M. Lattimer , Duncan A. Brown , Edo Berger , Christopher M. Biwer

In this paper we consider the possibility that strange quark matter may be manifested in the form of strangelet crystal planets. These planet-like objects are made up of nuggets of strange quark matter (SQM), organized in a crystalline…

高能天体物理现象 · 物理学 2020-04-08 Joás Zapata , Rodrigo Negreiros

We investigate the structure of strange dwarfs, modeled as hybrid compact stars composed of a self bound strange quark matter core surrounded by a white dwarf like crust, within a fully relativistic framework. Static configurations are…

太阳与恒星天体物理 · 物理学 2026-02-06 Edson Otoniel , José D. V. Arbañil , Geanderson A. Carvalho , Fridolin Weber

According to the strange quark matter hypothesis, pulsars may actually be strange stars composed of self-bound strange quark matter. The normal matter crust of a strange star, unlike that of a normal neutron star, is supported by a strong…

高能天体物理现象 · 物理学 2022-08-29 Ze-Cheng Zou , Yong-Feng Huang , Xiao-Li Zhang
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