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Massive neutron stars may harbor deconfined quark matter in their cores. I review some recent work on the microphysics and the phenomenology of compact stars with cores made of quark matter. This includes the equilibrium and stability of…

Solar and Stellar Astrophysics · Physics 2014-11-20 Armen Sedrakian

We derive a simple relation between strangeness neutrality and baryon-strangeness correlations. In heavy-ion collisions, the former is a consequence of quark number conservation of the strong interactions while the latter are sensitive…

High Energy Physics - Phenomenology · Physics 2020-01-22 Wei-jie Fu , Jan M. Pawlowski , Fabian Rennecke

The existence of deconfined quark matter in the superdense interior of neutron stars is a key question that has drawn considerable attention over the past few decades. Quark matter can comprise an arbitrary fraction of the star, from 0 for…

Astrophysics · Physics 2009-11-11 Prashanth Jaikumar , Sanjay Reddy , Andrew W. Steiner

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

If the deconfinement phase transformation of strongly interacting matter is of first-order and the expanding chromodynamic matter created in a high-energy nuclear collision enters the corresponding region of phase coexistence, a spinodal…

Nuclear Theory · Physics 2014-11-18 Volker Koch , Abhijit Majumder , Jorgen Randrup

The possible conversion of neutron matter to strange matter and its relevance to astrophysical problems are discussed. Particular attention is paid to the {\it form} in which this hypothetical burning process should be propagated in dense…

Astrophysics · Physics 2007-05-23 J. E. Horvath

We discuss strangeness production in heavy-ion collisions within and around the energy range of the planned NICA facility. We describe the minimal statistical model, in which the total strangeness yield is fixed by the observed or…

Nuclear Theory · Physics 2016-09-21 Boris Tomasik , E. E. Kolomeitsev

Strange quark matter could be found in the core of neutron stars or forming strange quark stars. As is well known, these astrophysical objects are endowed with strong magnetic fields which affect the microscopic properties of matter and…

Astrophysics · Physics 2008-12-18 R. Gonzalez Felipe , A. Perez Martinez , H. Perez Rojas , M. Orsaria

Explosive astrophysical systems, such as supernovae or compact star binary mergers, provide conditions where strange quark matter can appear. The high degree of isospin asymmetry and temperatures of several MeV in such systems may cause a…

High Energy Astrophysical Phenomena · Physics 2014-11-20 I. Sagert , T. Fischer , M. Hempel , G. Pagliara , J. Schaffner-Bielich , F. -K. Thielemann , M. Liebendörfer

Assuming that cosmic rays entering the Earth's atmosphere contain a small admixture of nuggets of strange quark matter in form of strangelets one can explain a number of apparently "strange" effects observed in different cosmic rays…

High Energy Physics - Phenomenology · Physics 2009-11-10 M. Rybczynski , Z. Wlodarczyk , G. Wilk

I review some aspects of the role of strange quarks in hot QCD matter and as probes of quark deconfinement at high temperature.

Nuclear Theory · Physics 2012-05-09 Berndt Müller

According to the strange quark matter hypothesis, strange planets may exist, which are planetary mass objects composed of almost equal numbers of up, down and strange quarks. A strange planet can revolve around its host strange star in a…

High Energy Astrophysical Phenomena · Physics 2024-06-18 Xiao-Li Zhang , Ze-Cheng Zou , Yong-Feng Huang , Hao-Xuan Gao , Pei Wang , Lang Cui , Xiang Liu

The gap caused by a strong electric field between the quark surface and nuclear crust of a strange star is studied in an improved model including gravity and pressure as well as electrostatic forces. The transition from gap to crust is…

Astrophysics · Physics 2009-11-13 Morten Stejner , Jes Madsen

We highlight recent theoretical and observational progress in several areas of neutron star astrophysics, and discuss the prospect for advances in the next decade.

Blue-supergiant stars develop into core-collapse supernovae --- one of the most energetic outbursts in the universe --- when all nuclear burning fuel is exhausted in the stellar core. Previous attempts failed to explain observed explosions…

In this chapter, we provide an overview of the physics of colliding black holes and neutron stars and of the impact of neutrinos on these systems. Observations of colliding neutron stars play an important role in nuclear astrophysics today.…

High Energy Astrophysical Phenomena · Physics 2026-03-03 Francois Foucart

A collection of modern, field-theoretical equations of state is applied to the investigation of cooling properties of compact stars. These comprise neutron stars as well as hypothetical strange matter stars, made up of absolutely stable…

Astrophysics · Physics 2009-10-28 Ch. Schaab , F. Weber , M. K. Weigel , N. K. Glendenning

It is shown that a conversion of neurons into strange quark matter in neutron stars is possible by means of a combustion process with a well-defined front. Conditions for the realization of a specific combustion mode, whether deflagration,…

Astrophysics · Physics 2008-11-26 I. Tokareva , A. Nusser

Neutrinos from dense environments are connected to the longstanding open questions of how massive stars explode and what are the sites where $r$-process elements are made. Flavor evolution and neutrino properties can influence…

High Energy Physics - Phenomenology · Physics 2021-10-19 Volpe Maria Cristina

Strangeness enhancement is considered as a potential signature for QGP phase transition. Here we claim the observation of strangeness enhancement in proton-proton (pp) collisions at RHIC energy saying the de-confinement phase is reached.…

High Energy Physics - Experiment · Physics 2025-12-24 Fatma. H. Sawy