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Related papers: Dense matter in compact stars - A pedagogical intr…

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We review theoretical developments in studies of dense matter and its phase structure of relevance to compact stars. Observational data on compact stars, which can constrain the properties of dense matter, are presented critically and…

Astrophysics · Physics 2008-11-26 Dany Page , Sanjay Reddy

The appearance of quark matter in the centers of compact stars has a number of astrophysical implications. In this contribution I discuss the structure and stability of compact stars, gravitational radiation from non-axisymmetric…

High Energy Astrophysical Phenomena · Physics 2015-05-20 Armen Sedrakian

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

The properties of dense hadronic and quark matter and its relation to compact stars are discussed. In a bottom-up approach one starts with nuclear and hypernuclear physics at low density and extrapolates hadronic matter to large densities.…

Astrophysics · Physics 2009-09-29 J. Schaffner-Bielich

In this conference-proceedings contribution, we review recent advances in placing model-independent constraints on the properties of cold and dense QCD matter inside neutron stars. In addition to introducing new bounds for the Equation of…

High Energy Astrophysical Phenomena · Physics 2019-04-03 Eemeli Annala , Tyler Gorda , Aleksi Kurkela , Joonas Nättilä , Aleksi Vuorinen

Densities in compact stars may be such that quarks are no longer confined in hadrons, but instead behave as weakly interacting particles. In this regime perturbative calculations are possible. Yet, due to high pressures and an attractive…

High Energy Physics - Phenomenology · Physics 2009-03-24 Sjoerd Hardeman

Two kinds of difficulties have challenged the physics community for many years: (1) knowing nature's building blocks (particle physics) and (2) understanding interacting many-body systems (many-body physics). Both of them exist in the…

Astrophysics · Physics 2010-04-14 Renxin Xu

In recent years, there have been several successful attempts to constrain the equation of state of neutron star matter using input from low-energy nuclear physics and observational data. We demonstrate that significant further restrictions…

High Energy Astrophysical Phenomena · Physics 2014-06-25 Aleksi Kurkela , Eduardo S. Fraga , Jurgen Schaffner-Bielich , Aleksi Vuorinen

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

Formed in the aftermath of gravitational core-collapse supernova explosions, neutron stars are unique cosmic laboratories for probing the properties of matter under extreme conditions that cannot be reproduced in terrestrial laboratories.…

Nuclear Theory · Physics 2019-03-06 David Blaschke , Nicolas Chamel

The densest predicted state of matter is colour-superconducting quark matter, in which quarks near the Fermi surface form a condensate of Cooper pairs. This form of matter may well exist in the core of compact stars, and the search for…

Nuclear Theory · Physics 2009-11-10 Mark G Alford

This short review aims at giving a brief overview of the various states of matter that have been suggested to exist in the ultra-dense centers of neutron stars. Particular emphasis is put on the role of quark deconfinement in neutron stars…

Solar and Stellar Astrophysics · Physics 2014-08-04 Fridolin Weber , Gustavo A. Contrera , Milva G. Orsaria , William Spinella , Omair Zubairi

Recent observations of neutron star masses close to the maximum predicted by nucleonic equations of state begin to challenge our understanding of dense matter in neutron stars, and constrain the possible presence of quark matter in their…

Nuclear Theory · Physics 2008-11-26 Gordon Baym

The study of dense matter at ultra-high density has a very long history, which is meaningful for us to understand not only cosmic events in extreme circumstances but also fundamental laws of physics. It is well known that the state of cold…

Solar and Stellar Astrophysics · Physics 2013-04-30 X. Y. Lai , C. Y. Gao , R. X. Xu

The properties of matter at finite baryon densities play an important role for the astrophysics of compact stars as well as for heavy ion collisions or the description of nuclear matter. Because of the sign problem of the quark determinant,…

High Energy Physics - Lattice · Physics 2017-04-05 Owe Philipsen

In this lecture, we give a first introduction to neutron stars, based on fundamental physical principles. After outlining their outstanding macroscopic properties, as obtained from observations, we infer the extreme conditions of matter in…

High Energy Astrophysical Phenomena · Physics 2016-09-27 Pierre M. Pizzochero

The quark matter may have great implications in astrophysical studies, which could appear in the early Universe, in compact stars, and/or as cosmic rays. After a general review of astrophysical quark matter, the density-dominated quark…

Astrophysics · Physics 2014-10-13 R. X. Xu

Compact stars may contain quark matter in their interiors at densities exceeding several times the nuclear saturation density. We explore models of such compact stars where there are two first-order phase transitions: the first from nuclear…

High Energy Astrophysical Phenomena · Physics 2017-10-25 Mark G. Alford , Armen Sedrakian

There has been much recent progress in our understanding of quark matter, culminating in the discovery that if such matter exists in the cores of neutron stars it ought to be in a color superconducting state. This paper explores the impact…

Astrophysics · Physics 2008-11-26 F. Weber , R. Negreiros , P. Rosenfield , Andreu Torres i Cuadrat

I discuss three topics in physics of massive (two solar-mass and larger) neutron stars containing deconfined quark matter: (i) the equation of state of deconfined dense quark matter and its color superconducting phases, (ii) the thermal…

High Energy Astrophysical Phenomena · Physics 2013-05-24 Armen Sedrakian
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