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Related papers: Strange stars with a mirror-dark-matter core confr…

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In this paper, we explore a novel framework for explaining the mass and radius relationships of observed neutron stars by considering strange stars (SSs) admixed with mirror dark matter (MDM). We develop a theoretical model that…

High Energy Astrophysical Phenomena · Physics 2025-02-05 Shu-Hua Yang , Chun-Mei Pi , Fridolin Weber

We investigate the structure and the tidal deformability of the color-flavor locked strange stars admixed with mirror dark matter. Assuming the stars in the GW170817 event have a mirror-dark-matter core or a mirror-dark-matter halo, the…

High Energy Astrophysical Phenomena · Physics 2024-08-20 S. -H. Yang , C. -M. Pi

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…

High Energy Astrophysical Phenomena · Physics 2023-04-20 Shu-Hua Yang , Chun-Mei Pi , Xiao-Ping Zheng , Fridolin Weber

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…

High Energy Astrophysical Phenomena · Physics 2022-05-17 Anil Kumar , Vivek Baruah Thapa , Monika Sinha

This paper deals with existence of strange stars in $f\left(T\right) $ modified gravity. For this purpose, we have taken the diagonal tetrad field of static spacetime with charged anisotropic fluid and MIT bag model, which provide the…

General Physics · Physics 2016-06-28 G. Abbas , Shahid Qaisar , Abdul Jawad

In our investigation, we pioneer the development of geometrically deformed strange stars within the framework of teleparallel gravity theory through gravitational decoupling via the complete geometric deformation (CGD) technique. The…

General Relativity and Quantum Cosmology · Physics 2025-02-05 Sneha Pradhan , Piyali Bhar , Sanjay Mandal , P. K. Sahoo , Kazuharu Bamba

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

The mirror twin Higgs model is a candidate for (strongly-interacting) complex dark matter, which mirrors SM interactions with heavier quark masses. A consequence of this model are mirror neutron stars -- exotic stars made entirely of mirror…

High Energy Astrophysical Phenomena · Physics 2023-07-05 Maurício Hippert , Emily Dillingham , Hung Tan , David Curtin , Jacquelyn Noronha-Hostler , Nicolás Yunes

We summarize masses and radii for a number of white dwarfs as deduced from a combination of proper motion studies, Hipparcos parallax distances, effective temperatures, and binary or spectroscopic masses. A puzzling feature of these data is…

Astrophysics · Physics 2009-11-11 G. J. Mathews , I. -S. Suh , B. O'Gorman , N. Q. Lan , W. Zech , K. Otsuki , F. Weber

We have studied strange star properties both at zero temperature and at finite temperatures and searched signatures of strange stars in gamma-ray, x-ray and radio astronomy. We have a set of Equations of State (EoS) for strange quark matter…

Astrophysics · Physics 2009-06-23 Manjari Bagchi , Subharthi Ray , Jishnu Dey , Mira Dey

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

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…

Solar and Stellar Astrophysics · Physics 2026-02-06 Edson Otoniel , José D. V. Arbañil , Geanderson A. Carvalho , Fridolin Weber

Strange quark stars with a crust and strange dwarfs consisting of a compact strange quark core and an extended crust are investigated in terms of a bag model. The crust, which consists of atomic nuclei and degenerate electrons, has a…

Astrophysics · Physics 2009-11-10 Yu. L. Vartanyan , A. K. Grigoryan , T. R. Sargsyan

Particles with strangeness content are predicted to populate dense matter, modifying the equation of state of matter inside neutron stars as well as their structure and evolution. In this work, we show how the modeling of strangeness…

Nuclear Theory · Physics 2019-06-12 R. O. Gomes , Prasanta Char , S. Schramm

Recent measurements of the compact star XTE J1814-338, with a mass of $M=1.2_{-0.05}^{+0.05}\ M_{\odot}$ and a radius of $R=7_{-0.4}^{+0.4} \ {\rm Km}$ alongside those of HESS J1731-347, which has a mass of $M=0.77_{-0.17}^{+0.20}\…

Nuclear Theory · Physics 2026-02-05 M. Vikiaris , V. Petousis , M. Veselsky , Ch. C. Moustakidis

We inspect the possibility that neutron star interiors are a mixture of ordinary matter and mirror dark matter. This is a scenario that can be naturally envisaged according to well studied accretion mechanisms, including the Bondi-Hoyle…

High Energy Astrophysical Phenomena · Physics 2020-11-06 Raul Ciancarella , Francesco Pannarale , Andrea Addazi , Antonino Marciano

Motivated by the recent suggestions that very massive pulsar (PSR J0952-0607) and very light compact object (HESS J1731-347) exist, in this article, we revisit the possibility of such objects being strange stars instead of the standard…

High Energy Astrophysical Phenomena · Physics 2023-09-06 H. C. Das , Luiz L. Lopes

A quark model with running coupling and running strange quark mass, which is thermodynamically self-consistent at both high and lower densities, is presented and applied to study properties of strange quark matter and structure of compact…

High Energy Physics - Phenomenology · Physics 2015-12-29 J. F. Xu , G. X. Peng , F. Liu , D. F. Hou , L. W. Chen

The observations of compact star inspirals from LIGO/Virgo provide a valuable tool to study the highly uncertain equation of state (EOS) of dense matter at the densities in which the compact stars reside. It is not clear whether the merging…

High Energy Astrophysical Phenomena · Physics 2021-08-19 Zhiqiang Miao , Jin-Liang Jiang , Ang Li , Lie-Wen Chen

The trace anomaly $\Delta$ is an important quantity that measures the broken conformal symmetry in neutron star matter. In this work, we present quasi-universal relations that connect the stellar profile of $\Delta$ to the compactness,…

High Energy Astrophysical Phenomena · Physics 2026-05-12 Shiyue Ren , Lap-Ming Lin
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