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It is proposed that the `bare' strange matter stars might not be bare, and radio pulsars might be in fact `bare' strange stars. As strange matter stars being intensely magnetized rotate, the induced unipolar electric fields would be large…

Astrophysics · Physics 2015-06-24 Ren Xin Xu , G. J. Qiao

Pulsar-like compact stars usually have strong magnetic fields, with the strength from $\sim 10^8$ to $\sim 10^{12}$ Gauss on surface. How such strong magnetic fields can be generated and maintained is still an unsolved problem, which is, in…

Solar and Stellar Astrophysics · Physics 2016-05-25 X. Y. Lai , R. X. Xu

A class of strange star is analyzed in the present article in hydrostatic equilibrium whose state is defined by a CFL phase equation of state. We compare our result with those obtained from MIT bag equation of state for strange quark matter…

General Relativity and Quantum Cosmology · Physics 2023-04-05 K. B. Goswami , A. Saha , P. K. Chattopadhyay , S. Karmakar

In this contribution the role of strangeness in astrophysics is discussed and, more precisely, strange hadronic matter in the interior of neutron stars. A special attention is payed to certain phenomena involving strange hadronic matter,…

Nuclear Theory · Physics 2024-09-11 Laura Tolos

Recent achievements of bare strange stars are briefly reviewed. A nascent protostrange star should be bare because of strong mass ejection and high temperature after the supernova detonation flame, and a crust can also hardly form except…

Astrophysics · Physics 2016-01-27 R. X. Xu

Strange quark matter (SQM) is considered a possible true ground state of QCD at high densities. This idea motivates research on exotic compact objects and certain cosmic-ray phenomena. For instance, the remnant HESS J1731-347 contains a…

High Energy Physics - Phenomenology · Physics 2025-11-26 C. R. Das

To investigate the missing compact star of Supernova 1987A, we analyzed both the cooling and the heating processes of a possible compact star based on the upper limit of observational X-ray luminosity. From the cooling process we found that…

High Energy Astrophysical Phenomena · Physics 2015-06-03 X. W. Liu , J. D. Liang , R. X. Xu , J. L. Han , G. J. Qiao

In this work, we study the properties of strange quark matter and reveal the evolution process of strange quark stars employing a self consistent thermodynamic treatment. A comprehensive and reliable thermodynamic basis for the study of the…

High Energy Physics - Phenomenology · Physics 2026-01-19 Huai-Min Chen , Cheng-Jun Xia , Guang-Xiong Peng

We have constructed equations of state involving various exotic forms of matter with large strangeness fraction such as hyperon matter, Bose-Einstein condensates of antikaons and strange quark matter. First order phase transitions from…

Nuclear Theory · Physics 2009-11-10 Sarmistha Banik , Matthias Hanauske , Debades Bandyopadhyay

Gravity compresses the matter in the cores of neutron stars to densities which are significantly higher than the density of ordinary atomic nuclei, thus providing a high-pressure environment in which numerous particle processes - from the…

Astrophysics · Physics 2010-11-19 Fridolin Weber

This paper discusses several most intruigung astrophysical implications connected with the possible absolute stability of strange quark matter.This is followed by a discussion of two astrophysical signals that may point at the existence of…

Astrophysics · Physics 2007-05-23 Fridolin Weber

More than 20 years ago, Glendenning, Kettner and Weber proposed the existence of stable white dwarfs with a core of strange quark matter. More recently, by studying radial modes, Alford, Harris and Sachdeva concluded instead that those…

Solar and Stellar Astrophysics · Physics 2023-10-04 Francesco Di Clemente , Alessandro Drago , Prasanta Char , Giuseppe Pagliara

We consider the possibility for the existence of the third family of compact objects, considering the effect of strong magnetic fields inside the hybrid stars. As a result, we demonstrate such new sequences of stable equilibrium…

High Energy Astrophysical Phenomena · Physics 2017-02-23 Hajime Sotani , Toshitaka Tatsumi

Members of the family of pulsar-like stars are distinguished by their different manifestations observed, i.e., radio pulsars, accretion-driven X-ray pulsars, X-ray bursts, anomalous X-ray pulsars/soft gamma-ray repeaters, compact center…

Astrophysics · Physics 2007-05-23 Renxin Xu

The gravitational radiation from compact pulsar-like stars depends on the state of dense matter at supranuclear densities, i.e., the nature of pulsar (e.g., either normal neutron stars or quark stars). The solid quark star model is focused…

Astrophysics · Physics 2009-11-13 R. X. Xu

Recent Chandra observations have raised expectations that the objects RX J185635-3754 and 3C58 are either bare strange quark stars or stars with extended quark cores. However, these observations can also be interpreted in terms of normal…

Astrophysics · Physics 2009-11-07 Madappa Prakash , James M. Lattimer , Andrew W. Steiner , Dany Page

We contrast the evolution of gravitational binary mergers for the two cases of a black hole and a normal neutron star, and a black hole and a self-bound strange quark matter star. In both cases inspiral continues until the Roche limit is…

Astrophysics · Physics 2009-11-07 Madappa Prakash , James M. Lattimer

I review the foundational motivation which led us to the ultra relativistic heavy ion collision research at SPS, RHIC and now LHC: the quantum vacuum structure; the deconfined nature of quark-gluon plasma (QGP) phase filling the Universe…

Nuclear Theory · Physics 2012-05-10 Jan Rafelski

We investigate the thermodynamic properties of strange quark matter under the strong magnetic field in the framework of the MIT bag model in two cases of bag constants. We consider two cases of the magnetic field, the uniform magnetic field…

Nuclear Theory · Physics 2020-04-10 Fatemeh Kayanikhoo , Kazem Naficy , Gholam Hossein Bordbar

We address the production of strangelets inside neutron stars by means of high-energy neutrino interactions (sparking). Requiring that neutron stars remain as such along their lifetimes, we obtain a bound on the probability of a strangelet…

Astrophysics · Physics 2009-10-31 J. E. Horvath , H. Vucetich