Strange Matter
Chengjun Xia, Xiaoyu Lai, Renxin Xu

TL;DR
This paper proposes that pulsar-like objects are actually strange stars composed of strange matter, offering new models for their structure, properties, and observational signatures to better understand their nature and related astrophysical phenomena.
Contribution
It introduces the concept of strange matter as the core composition of pulsars, developing models for strange star structures and connecting them to observable phenomena.
Findings
Strange matter models explain pulsar mass-radius relations.
Observational data supports the strange star hypothesis.
Strange stars could account for dark matter and merger events.
Abstract
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 properties of those objects are profoundly connected to phenomena such as supernova explosions, gamma-ray bursts, fast radio bursts, high/low-mass compact stars, and even to issues like dark matter and cosmic rays. However, due to the non-perturbative nature of quantum chromodynamics, significant uncertainties remain in our current understanding of the composition and equation of state (EOS) for the dense matter inside them. Drawing on three-flavour symmetry and the strong coupling between light quarks, this paper presents a novel perspective on the nature of pulsars: they are actually composed of strange matter, in the form of either strange quark…
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Taxonomy
TopicsPulsars and Gravitational Waves Research · Dark Matter and Cosmic Phenomena · Astronomy and Astrophysical Research
