Quark core stars, quark stars and strange stars

A pedagogical overview of strange quark matter and strange stars is presented. After a historical notation of the research and an introduction to quark matter, a major part is devoted to the physics and astrophysics of strange stars, with attention being paid to the possible ways by which neutron stars and strange stars can be distinguished in astrophysics. Recent possible evidence for bare strange stars is also discussed.

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A Relativistic Compact Stellar Model of Anisotropic Quark Matter Mixed with Dark Energy

Advances in High Energy Physics ◽

10.1155/2021/6966689 ◽

2021 ◽

Vol 2021 ◽

pp. 1-7

Author(s):

Theophanes Grammenos ◽

Farook Rahaman ◽

Saibal Ray ◽

Debabrata Deb ◽

Sourav Roy Chowdhury

Keyword(s):

Dark Energy ◽

Quark Matter ◽

Stellar System ◽

Stellar Model ◽

Fluid Distribution ◽

Stable Model ◽

Strange Stars ◽

Quark Stars ◽

Proposed Model ◽

Two Fluid

The possibility of strange stars mixed with dark energy to be one of the candidates for dark energy stars is the main issue of the present study. Our investigation shows that quark matter atcs as dark energy after a certain yet unknown critical condition inside the quark stars. Our proposed model reveals that strange stars mixed with dark energy feature a physically acceptable stable model and mimic characteristics of dark energy stars. The plausible connections are shown through the mass-radius relation as well as the entropy and temperature. We particularly note that a two-fluid distribution is a major reason for the anisotropic nature of the spherical stellar system.

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Strange Quark Matter as Dark Matter

Nonlinear Phenomena in Complex Systems ◽

10.33581/1561-4085-2019-22-4-311-317 ◽

2019 ◽

Vol 22 (4) ◽

pp. 311-317

Author(s):

Hidezumi Terazawa

Keyword(s):

Dark Matter ◽

Quark Matter ◽

Strange Quark ◽

Strange Quark Matter ◽

Quark Stars

New forms of matter such as super-hypernuclei (strange quark matter) and superhypernuclear stars (strange quark stars) as candidates for dark matter are discussed in some detail, based on the so-called "Bodmer–Terazawa–Witten hypothesis" assuming that they are stable absolutely or quasi-stable (decaying only weakly).

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