Nuclear Statistical Equilibrium for Compact Stars: Modelling the Nuclear Energy Functional

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ISBN 13 :
Total Pages : 440 pages
Book Rating : 4.:/5 (948 download)

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Book Synopsis Nuclear Statistical Equilibrium for Compact Stars: Modelling the Nuclear Energy Functional by : François Aymard

Download or read book Nuclear Statistical Equilibrium for Compact Stars: Modelling the Nuclear Energy Functional written by François Aymard and published by . This book was released on 2015 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: He core collapse supernova is one of the most powerful known phenomena in the universe. It results from the explosion of very massive stars after they have burnt all their fuel. The hot compact remnant, the so-called proto-neutron star, cools down to become an inert catalyzed neutron star. The dynamics and structure of compact stars, that is core collapse supernovae, proto-neutron stars and neutron stars, are still not fully understood and are currently under active research, in association with astrophysical observations and nuclear experiments. One of the key components for modelling compact stars concerns the Equation of State. The task of computing a complete realistic consistent Equation of State for all such stars is challenging because a wide range of densities, proton fractions and temperatures is spanned. This thesis deals with the icroscopic modelling of the structure and internal composition of baryonic matter with nucleonic degrees of freedom in compact stars, in order to obtain a realistic unified Equation of State. In particular, we are interesting in a formalism which can be applied both at sub-saturation and super-saturation densities, and which gives in the zero temperature limit results compatible with the microscopic Hartree-Fock-Bogoliubov theory with modern realistic effective in- teractions constrained on experimental nuclear data. For this purpose, we present, for sub-saturated matter, a Nuclear Statistical Equilibrium model which corresponds to a statistical superposition of finite configurations, the so-called Wigner-Seitz cells. Each cell contains a nucleus, or cluster, embedded in a homogeneous electron gas as well as a homogeneous neutron and proton gas. Within each cell, we investigate the different components of the nuclear energy of clusters in interaction with gases. The use of the nuclear mean-field theory for the description of both the clusters and the nucleon gas allows a theoretical consistency with the treatment at saturation and beyond. At densities above two-three times saturation, other degrees of freedom are expected to appear, which potentially lead to other consistency problems but this issue will not be treated in this thesis. The thesis is divided into three parts. In part I, we present the Nuclear Statistical Equilibrium model based on the grand canonical statistics and non-relativistic Skyrme interactions. Results at [beta]-equilibrium are shown and the importance of the clusters distribution as well as a realistic treatment for the free energy model is discussed. Part II investigates the functional behavior of the baryonic energy in the Wigner-Seitz cell within the Extended-Thomas-Fermi approximation. In particular, both bulk and surface in-medium effects are studied, and their dependence on cluster size and asymmetry as well as gas densities and asymmetry is investigated. A preliminary result of in-medium surface effects is presented within some approximations in the case of [beta]-equilibrated matter.

Compact Stars

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Publisher : Springer
ISBN 13 :
Total Pages : 416 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Compact Stars by : Norman K. Glendenning

Download or read book Compact Stars written by Norman K. Glendenning and published by Springer. This book was released on 1997 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: A whole decades research collated, organised and synthesised into one single book! Following a 60-page review of the seminal treatises of Misner, Thorne, Wheeler and Weinberg on general relativity, Glendenning goes on to explore the internal structure of compact stars, white dwarfs, neutron stars, hybrids, strange quark stars, both the counterparts of neutron stars as well as of dwarfs. This is a self-contained treatment and will be of interest to graduate students in physics and astrophysics as well as others entering the field.

Statistical Models for Nuclear Decay

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Publisher : CRC Press
ISBN 13 : 1420033476
Total Pages : 354 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Statistical Models for Nuclear Decay by : A.J Cole

Download or read book Statistical Models for Nuclear Decay written by A.J Cole and published by CRC Press. This book was released on 2000-01-01 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: Statistical Models for Nuclear Decay: From Evaporation to Vaporization describes statistical models that are applied to the decay of atomic nuclei, emphasizing highly excited nuclei usually produced using heavy ion collisions. The first two chapters present essential introductions to statistical mechanics and nuclear physics, followed by a descript

Hot and Dense Matter in Compact Stars - From Nuclei to Quarks

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (682 download)

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Book Synopsis Hot and Dense Matter in Compact Stars - From Nuclei to Quarks by :

Download or read book Hot and Dense Matter in Compact Stars - From Nuclei to Quarks written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation deals with the equation of state of hot and dense matter in compact stars, with special focus on first order phase transitions. A general classification of first order phase transitions is given and the properties of mixed phases are discussed. Aspects of nucleation and the role of local constraints are investigated. The derived theoretical concepts are applied to matter in neutron stars and supernovae, in the hadron-quark and the liquid-gas phase transition. For the detailed description of the liquid-gas phase transition a new nuclear statistical equilibrium model is developed. It is based on a thermodynamic consistent implementation of relativistic mean-field interactions and excluded volume effects. With this model different equation of state tables are calculated and the composition and thermodynamic properties of supernova matter are analyzed. As a first application numerical simulations of core-collapse supernovae are presented. For the hadron-quark phase transition two possible scenarios are studied in more detail. First the appearance of a new mixed phase in a proto neutron star and the implications on its evolution. In the second scenario the consequences of the hadron-quark transition in core-collapse supernovae are investigated. Simulations show that the appearance of quark matter has clear observable signatures and can even lead to the generation of an explosion.

Nuclear Theory in the Age of Multimessenger Astronomy

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Publisher : CRC Press
ISBN 13 : 1040044743
Total Pages : 383 pages
Book Rating : 4.0/5 (4 download)

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Book Synopsis Nuclear Theory in the Age of Multimessenger Astronomy by : Omar Benhar

Download or read book Nuclear Theory in the Age of Multimessenger Astronomy written by Omar Benhar and published by CRC Press. This book was released on 2024-07-03 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the last decade, astrophysical observations of neutron stars — both as isolated and binary sources — have paved the way for a deeper understanding of the structure and dynamics of matter beyond nuclear saturation density. The mapping between astrophysical observations and models of dense matter based on microscopic dynamics has been poorly investigated so far. However, the increased accuracy of present and forthcoming observations may be instrumental in resolving the degeneracy between the predictions of different equations of state. Astrophysical and laboratory probes have the potential to paint to a new coherent picture of nuclear matter — and, more generally, strong interactions — over the widest range of densities occurring in the Universe. This book provides a self-contained account of neutron star properties, microscopic nuclear dynamics and the recent observational developments in multimessenger astronomy. It also discusses the unprecedented possibilities to shed light on long standing and fundamental issues, such as the validity of the description of matter in terms of pointlike baryons and leptons and the appearance of deconfined quarks in the high density regime. It will be of interest to researchers and advanced PhD students working in the fields of Astrophysics, Gravitational Physics, Nuclear Physics and Particle Physics. Key Features: Reviews state-of-the-art theoretical and experimental developments Self-contained and cross-disciplinary While being devoted to a very lively and fast developing field, the book fundamentally addresses methodological issues. Therefore, it will not be subject to fast obsolescence. Omar Benhar is an INFN Emeritus Research Director, and has been teaching Relativistic Quantum Mechanics, Quantum Electrodynamics and Structure of Compact Stars at “Sapienza” University of Rome for over twenty years. He has worked extensively in the United States, and since 2013 has served as an adjunct professor at the Center for Neutrino Physics of Virginia Polytechnic Institute and State University. Prof. Benhar has authored or co-authored three textbooks on Relativistic Quantum Mechanics, Gauge Theories, and Structure and Dynamics of Compact Stars, and published more than one hundred scientific papers on the theory of many-particle systems, the structure of compact stars and the electroweak interactions of nuclei. Alessandro Lovato is a physicist at Argonne National Laboratory and an INFN researcher in Trento. His research in theoretical nuclear physics focuses on consistently modeling the self-emerging properties of atomic nuclei and neutron-star matter in terms of the microscopic interactions among the constituent protons and neutrons. He has co-authored more than eighty scientific publications on the theory of many-particle systems, the structure of compact stars, and the electroweak interactions of nuclei. He is at the forefront of high-performance computing applied to solving the quantum many-body problem. Andrea Maselli is an Associate Professor at the Gran Sasso Science Institute, in L’Aquila, where he teaches Gravitation and Cosmology and Physics of Black Hole. His research focuses on strong gravity, which plays a crucial role in many astrophysical phenomena involving black hole and neutron stars, representing natural laboratories to test fundamental physics. Prof. Maselli has co-authored more than eighty scientific papers on the modelling of black holes and neutron stars in General Relativity and extension thereof, their gravitational wave emission, and on tests of gravity in the strong filed regime. He is active in various collaborations aimed at developing next generation of gravitational wave detectors, such as the LISA satellite, the Einstein Telescope, and the Lunar Gravitational Wave Antenna. Francesco Pannarale is an Associate Professor at “Sapienza” Univeristy of Rome, where he teaches Gravitational Waves, Compact Objects and Black Holes, Computing Methods for Physics, and Electromagnetism. His research interests are in gravitational-wave physics and multimessenger astronomy, and they range from modelling compact binary sources to data analysis. He has co-authored over one hundred and eighty scientific publications and was at the forefront of the joint observation of GW170817 and GRB 170817A. He is currently serving as co-chair of the LIGO-Virgo-KAGRA Data Analysis Council.

The Physics and Astrophysics of Neutron Stars

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Publisher : Springer
ISBN 13 : 3319976168
Total Pages : 811 pages
Book Rating : 4.3/5 (199 download)

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Book Synopsis The Physics and Astrophysics of Neutron Stars by : Luciano Rezzolla

Download or read book The Physics and Astrophysics of Neutron Stars written by Luciano Rezzolla and published by Springer. This book was released on 2019-01-09 with total page 811 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarizes the recent progress in the physics and astrophysics of neutron stars and, most importantly, it identifies and develops effective strategies to explore, both theoretically and observationally, the many remaining open questions in the field. Because of its significance in the solution of many fundamental questions in nuclear physics, astrophysics and gravitational physics, the study of neutron stars has seen enormous progress over the last years and has been very successful in improving our understanding in these fascinating compact objects. The book addresses a wide spectrum of readers, from students to senior researchers. Thirteen chapters written by internationally renowned experts offer a thorough overview of the various facets of this interdisciplinary science, from neutron star formation in supernovae, pulsars, equations of state super dense matter, gravitational wave emission, to alternative theories of gravity. The book was initiated by the European Cooperation in Science and Technology (COST) Action MP1304 “Exploring fundamental physics with compact stars” (NewCompStar).

Nuclear Equation Of State - Lecture Notes Of The Workshop

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Publisher : World Scientific
ISBN 13 : 9814547824
Total Pages : 424 pages
Book Rating : 4.8/5 (145 download)

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Book Synopsis Nuclear Equation Of State - Lecture Notes Of The Workshop by : Ahmad Ansari

Download or read book Nuclear Equation Of State - Lecture Notes Of The Workshop written by Ahmad Ansari and published by World Scientific. This book was released on 1996-03-22 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the diversified and changing scenarios of the current frontiers of nuclear physics research, the topic 'Nuclear Equation of State' occupies the pivotal position. The present series of lectures by well known experts in this field span a wide area ranging from low energy to ultrarelativistic energy, with application to astrophysical phenomena like supernovae explosions, neutron star and other stellar processes, phase transitions in quantum chromodynamics, and properties of quark-gluon plasma. The present status of the VUU model for the intermediate energy heavy-ion collisions is also reviewed.

Studying Compact Star Equation of States with General Relativistic Initial Data Approach

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Publisher : Springer Nature
ISBN 13 : 9811541515
Total Pages : 93 pages
Book Rating : 4.8/5 (115 download)

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Book Synopsis Studying Compact Star Equation of States with General Relativistic Initial Data Approach by : Enping Zhou

Download or read book Studying Compact Star Equation of States with General Relativistic Initial Data Approach written by Enping Zhou and published by Springer Nature. This book was released on 2020-04-03 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the equation of state (EoS) of compact stars, particularly the intriguing possibility of the “quark star model.” The EoS of compact stars is the subject of ongoing debates among astrophysicists and particle physicists, due to the non-perturbative property of strong interaction at low energy scales. The book investigates the tidal deformability and maximum mass of rotating quark stars and triaxially rotating quark stars, and compares them with those of neutron stars to reveal significant differences. Lastly, by combining the latest observations of GW170817, the book suggests potential ways to distinguish between the neutron star and quark star models.

Study of Statistical Equilibrium in a Nuclear System at Low Bombarding Energies

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ISBN 13 :
Total Pages : 388 pages
Book Rating : 4.3/5 (129 download)

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Book Synopsis Study of Statistical Equilibrium in a Nuclear System at Low Bombarding Energies by : Jeong Ho Lee

Download or read book Study of Statistical Equilibrium in a Nuclear System at Low Bombarding Energies written by Jeong Ho Lee and published by . This book was released on 1988 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Modeling the (proto)neutron Star Crust

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ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (12 download)

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Book Synopsis Modeling the (proto)neutron Star Crust by : Thomas Carreau

Download or read book Modeling the (proto)neutron Star Crust written by Thomas Carreau and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main aim of this thesis is to make realistic predictions and to investigate the sources of uncertainties in the observables of nonaccreting cold neutron stars and warm protoneutron stars, using the present day constraints provided by nuclear experiments, developments in chiral effective field theory, and astrophysical observations. A unified metamodeling approach was introduced to calculate the stellar composition and equation of state of cold nonaccreting neutron stars for any functional of nuclear matter. A Bayesian determination of the equation of state parameters was carried out, leading to realistic predictions for neutron star observables. At finite temperature, a full statistical equilibrium of ions in the crust was considered, allowing in particular for the computation of the impurity parameter. The results are compatible with constraints inferred from GW170817, and suggest that a full crustal origin of pulsar glitches should be excluded. Deviations in the crust composition from cold catalyzed matter are observed at the crystallization temperature. Results show that the contribution of impurities is nonnegligible, thus potentially having an impact on transport properties in the crust. Higher precision in the determination of high-order isovector empirical parameters through nuclear experiments or low-density effective field theory predictions, and in the experimental and/or theoretical knowledge of the surface energy at extreme isospin ratios are needed to reduce the uncertainties of crustal observables. The numerical framework developed during this thesis can be used as a basis for future studies.

Nuclear Physics of Stars

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Publisher : John Wiley & Sons
ISBN 13 : 3527618767
Total Pages : 680 pages
Book Rating : 4.5/5 (276 download)

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Book Synopsis Nuclear Physics of Stars by : Christian Iliadis

Download or read book Nuclear Physics of Stars written by Christian Iliadis and published by John Wiley & Sons. This book was released on 2008-07-11 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermonuclear reactions in stars is a major topic in the field of nuclear astrophysics, and deals with the topics of how precisely stars generate their energy through nuclear reactions, and how these nuclear reactions create the elements the stars, planets and - ultimately - we humans consist of. The present book treats these topics in detail. It also presents the nuclear reaction and structure theory, thermonuclear reaction rate formalism and stellar nucleosynthesis. The topics are discussed in a coherent way, enabling the reader to grasp their interconnections intuitively. The book serves both as a textbook, with many examples and end-of-chapter exercises, but also as a reference book for use by researchers working in the field of nuclear astrophysics.

Black Holes, White Dwarfs, and Neutron Stars

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Publisher : John Wiley & Sons
ISBN 13 : 3527617671
Total Pages : 663 pages
Book Rating : 4.5/5 (276 download)

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Book Synopsis Black Holes, White Dwarfs, and Neutron Stars by : Stuart L. Shapiro

Download or read book Black Holes, White Dwarfs, and Neutron Stars written by Stuart L. Shapiro and published by John Wiley & Sons. This book was released on 2008-11-20 with total page 663 pages. Available in PDF, EPUB and Kindle. Book excerpt: This self-contained textbook brings together many different branches of physics--e.g. nuclear physics, solid state physics, particle physics, hydrodynamics, relativity--to analyze compact objects. The latest astronomical data is assessed. Over 250 exercises.

Nuclear Science Abstracts

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ISBN 13 :
Total Pages : 934 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis Nuclear Science Abstracts by :

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976 with total page 934 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Compact Stars. Nuclear Physi ...

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (249 download)

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Book Synopsis Compact Stars. Nuclear Physi ... by : Glendenning

Download or read book Compact Stars. Nuclear Physi ... written by Glendenning and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Implications for Compact Stars of a Soft Nuclear Equation of State from Heavy-ion Data

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (1 download)

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Book Synopsis Implications for Compact Stars of a Soft Nuclear Equation of State from Heavy-ion Data by : Laura Tolos

Download or read book Implications for Compact Stars of a Soft Nuclear Equation of State from Heavy-ion Data written by Laura Tolos and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Compact Stars

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ISBN 13 : 9781788022422
Total Pages : 294 pages
Book Rating : 4.0/5 (224 download)

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Book Synopsis Compact Stars by : Ritu Tamta

Download or read book Compact Stars written by Ritu Tamta and published by . This book was released on 2018-04 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Equilibrium Compound Nucleus Post-Fission Theory

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Publisher : Springer
ISBN 13 : 9783031433153
Total Pages : 0 pages
Book Rating : 4.4/5 (331 download)

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Book Synopsis Equilibrium Compound Nucleus Post-Fission Theory by : Qing-Biao Shen

Download or read book Equilibrium Compound Nucleus Post-Fission Theory written by Qing-Biao Shen and published by Springer. This book was released on 2023-12-13 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book proposes and develops the equilibrium compound nucleus post-fission theory, a powerful tool for studying the fission process and making numerical calculations of post-fission nuclear data. It begins with a detailed historical background on fission theory and covers fundamental concepts, such as the Bohr-Wheeler formula and time dependent nuclear density functional theory. The authors explain the kinematics of heavy-ion collisions and develop a heavy-ion spherical optical model. They also present the theoretical methods for calculating the yield, kinetic energy distribution, and angular distribution of fission fragments in the initial state of fission. In addition, readers are provided with the method for calculating the prompt neutron and prompt gamma-ray data as well as the proportion of the isomeric state nucleus and independent yield from the initial yield of the fission fragments. Using the nuclear decay data of the fission products, a method for calculating the cumulative yield and decay heat of the fission fragments is also given. A fission delayed neutron simplification model is proposed and the theoretical method for calculating the total contribution of three fission channels to post-fission nuclear data is provided. This book concludes with a step-by-step guide on numerical calculations for post-fission nuclear data and a Fortran program for optimizing the best theoretical model parameters. It is ideal for both junior and senior researchers in nuclear physics, as well as graduate students who are interested learning about the subject. Given the current interest in post-fission and the tremendous experimental and theoretical efforts in studying it, this book serves as a timely and comprehensive resource for the nuclear physics community.