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Gravity Tests With Pulsars
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Book Synopsis Gravity Tests with Pulsars by : Huanchen Hu
Download or read book Gravity Tests with Pulsars written by Huanchen Hu and published by Eliva Press. This book was released on 2023-05-22 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: General relativity has so far passed all experimental tests, with some of the most stringent tests in strong fields coming from observations of pulsars - rotating neutron stars that form from the collapsed cores of massive stars during supernovae. Such compact objects contain the densest form of matter in the observable universe, and therefore produce a strong gravitational field in their vicinity. The excellent rotational stability of pulsars makes them powerful tools for studying a wide range of topics in fundamental physics. This dissertation investigates four aspects using the new generation of radio telescopes: (1) constraining the dense matter equation of state by measuring the moment of inertia of neutron stars, (2) testing higher-order gravitational light propagation effects in the Double Pulsar system using observations from the MeerKAT telescope, (3) prospects of testing scalar-tensor gravity using pulsar-white dwarf system and hypothetical pulsar-black hole systems, and (4) recent advances in the detection of nanohertz gravitational waves using pulsar timing arrays and efforts to improve it.
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).
Book Synopsis Testing gravity with binary pulsars by : J. H. Taylor
Download or read book Testing gravity with binary pulsars written by J. H. Taylor and published by . This book was released on 1993 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Multi-Wavelength Studies of Pulsars and Their Companions by : John Antoniadis
Download or read book Multi-Wavelength Studies of Pulsars and Their Companions written by John Antoniadis and published by Springer. This book was released on 2014-09-23 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: The focus of his prize-winning thesis is on observations and modeling of binary millisecond pulsars. But in addition, John Antoniadis covers a wide range of observational measurements of binary compact stars systems and tests of General Relativity, like indirect measurements of gravitational wave emission and posing the most stringent constraints on Scalar-Tensor gravity theories. Among others, he presents a system that hosts the most massive neutron star known to date, which has important ramifications for strong-field gravity and nuclear physics. This impressive work was awarded the Otto-Hahn Medal of the Max-Planck Society and the Best PhD in Gravity, Particle and Atomic physics award by the German Physics Society (DPG).
Book Synopsis Gravitational-wave Versus Binary-pulsar Tests of Strong-field Gravity by : Thibault Damour
Download or read book Gravitational-wave Versus Binary-pulsar Tests of Strong-field Gravity written by Thibault Damour and published by . This book was released on 1998 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Gravitational Wave Detection and Data Analysis for Pulsar Timing Arrays by : Rutger van Haasteren
Download or read book Gravitational Wave Detection and Data Analysis for Pulsar Timing Arrays written by Rutger van Haasteren and published by Springer Science & Business Media. This book was released on 2013-09-12 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pulsar timing is a promising method for detecting gravitational waves in the nano-Hertz band. In his prize winning Ph.D. thesis Rutger van Haasteren deals with how one takes thousands of seemingly random timing residuals which are measured by pulsar observers, and extracts information about the presence and character of the gravitational waves in the nano-Hertz band that are washing over our Galaxy. The author presents a sophisticated mathematical algorithm that deals with this issue. His algorithm is probably the most well-developed of those that are currently in use in the Pulsar Timing Array community. In chapter 3, the gravitational-wave memory effect is described. This is one of the first descriptions of this interesting effect in relation with pulsar timing, which may become observable in future Pulsar Timing Array projects. The last part of the work is dedicated to an effort to combine the European pulsar timing data sets in order to search for gravitational waves. This study has placed the most stringent limit to date on the intensity of gravitational waves that are produced by pairs of supermassive black holes dancing around each other in distant galaxies, as well as those that may be produced by vibrating cosmic strings. Rutger van Haasteren has won the 2011 GWIC Thesis Prize of the Gravitational Wave International Community for his innovative work in various directions of the search for gravitational waves by pulsar timing. The work is presented in this Ph.D. thesis.
Book Synopsis Essential Radio Astronomy by : James J. Condon
Download or read book Essential Radio Astronomy written by James J. Condon and published by Princeton University Press. This book was released on 2016-04-05 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ideal text for a one-semester course in radio astronomy Essential Radio Astronomy is the only textbook on the subject specifically designed for a one-semester introductory course for advanced undergraduates or graduate students in astronomy and astrophysics. It starts from first principles in order to fill gaps in students' backgrounds, make teaching easier for professors who are not expert radio astronomers, and provide a useful reference to the essential equations used by practitioners. This unique textbook reflects the fact that students of multiwavelength astronomy typically can afford to spend only one semester studying the observational techniques particular to each wavelength band. Essential Radio Astronomy presents only the most crucial concepts—succinctly and accessibly. It covers the general principles behind radio telescopes, receivers, and digital backends without getting bogged down in engineering details. Emphasizing the physical processes in radio sources, the book's approach is shaped by the view that radio astrophysics owes more to thermodynamics than electromagnetism. Proven in the classroom and generously illustrated throughout, Essential Radio Astronomy is an invaluable resource for students and researchers alike. The only textbook specifically designed for a one-semester course in radio astronomy Starts from first principles Makes teaching easier for astronomy professors who are not expert radio astronomers Emphasizes the physical processes in radio sources Covers the principles behind radio telescopes and receivers Provides the essential equations and fundamental constants used by practitioners Supplementary website includes lecture notes, problem sets, exams, and links to interactive demonstrations An online illustration package is available to professors
Book Synopsis Theory and Experiment in Gravitational Physics by : Clifford M. Will
Download or read book Theory and Experiment in Gravitational Physics written by Clifford M. Will and published by Cambridge University Press. This book was released on 2018-09-27 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive review of the testing and research conducted on Einstein's theory of general relativity.
Book Synopsis Was Einstein Right? The Double Pulsar as a Unique Testbed for Strong-field Gravity by :
Download or read book Was Einstein Right? The Double Pulsar as a Unique Testbed for Strong-field Gravity written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Ever since Einstein's theory of general relativity (GR) was published, physicists have tried to put its revolutionary predictions to the test. While tests in the solar system can only probe the weak-field regime of relativistic gravity, we rely on the precision tests provided by radio pulsars to explore the strong-field limit. The most wonderful example for such a testbed is the unique Double Pulsar, discovered by our team last year. This system of two orbiting pulsars already provides us with the most stringent test of GR ever performed in the strong field. I will report on its discovery, present the most recent results and demonstrate how the double pulsar can also be used to study relativistic plasma physics under extreme conditions.
Book Synopsis Recent Progress on Gravity Tests by : Cosimo Bambi
Download or read book Recent Progress on Gravity Tests written by Cosimo Bambi and published by Springer Nature. This book was released on with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Clocks in the Sky by : Geoff McNamara
Download or read book Clocks in the Sky written by Geoff McNamara and published by Springer Science & Business Media. This book was released on 2009-04-24 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pulsars are rapidly spinning neutron stars, the collapsed cores of once massive stars that ended their lives as supernova explosions. In this book, Geoff McNamara explores the history, subsequent discovery and contemporary research into pulsar astronomy. The story of pulsars is brought right up to date with the announcement in 2006 of a new breed of pulsar, Rotating Radio Transients (RRATs), which emit short bursts of radio signals separated by long pauses. These may outnumber conventional radio pulsars by a ratio of four to one. Geoff McNamara ends by pointing out that, despite the enormous success of pulsar research in the second half of the twentieth century, the real discoveries are yet to be made including, perhaps, the detection of the hypothetical pulsar black hole binary system by the proposed Square Kilometre Array - the largest single radio telescope in the world.
Book Synopsis Gravitation and Experiment by : Thibault Damour
Download or read book Gravitation and Experiment written by Thibault Damour and published by Springer Science & Business Media. This book was released on 2007-08-16 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a detailed, pedagogical introduction to general relativity. It includes a review of what may lie beyond and collects up-to-date essays on the experimental tests of this theory, including the precise timing of the double pulsar J0737-3039. Coverage also details the recent results of the Gravity Probe B mission.
Book Synopsis Tests of Gravity Theories with Pulsar Timing by : Bilel Ben Salem
Download or read book Tests of Gravity Theories with Pulsar Timing written by Bilel Ben Salem and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Neutron Stars and Pulsars by : Werner Becker
Download or read book Neutron Stars and Pulsars written by Werner Becker and published by Springer Science & Business Media. This book was released on 2009-02-11 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neutron stars are the most compact astronomical objects in the universe which are accessible by direct observation. Studying neutron stars means studying physics in regimes unattainable in any terrestrial laboratory. Understanding their observed complex phenomena requires a wide range of scientific disciplines, including the nuclear and condensed matter physics of very dense matter in neutron star interiors, plasma physics and quantum electrodynamics of magnetospheres, and the relativistic magneto-hydrodynamics of electron-positron pulsar winds interacting with some ambient medium. Not to mention the test bed neutron stars provide for general relativity theories, and their importance as potential sources of gravitational waves. It is this variety of disciplines which, among others, makes neutron star research so fascinating, not only for those who have been working in the field for many years but also for students and young scientists. The aim of this book is to serve as a reference work which not only reviews the progress made since the early days of pulsar astronomy, but especially focuses on questions such as: "What have we learned about the subject and how did we learn it?", "What are the most important open questions in this area?" and "What new tools, telescopes, observations, and calculations are needed to answer these questions?". All authors who have contributed to this book have devoted a significant part of their scientific careers to exploring the nature of neutron stars and understanding pulsars. Everyone has paid special attention to writing educational comprehensive review articles with the needs of beginners, students and young scientists as potential readers in mind. This book will be a valuable source of information for these groups.
Book Synopsis Gravitational Wave Astrophysics with Pulsar Timing Arrays by : Chiara M. F. Mingarelli
Download or read book Gravitational Wave Astrophysics with Pulsar Timing Arrays written by Chiara M. F. Mingarelli and published by Springer. This book was released on 2015-11-09 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Ph.D. thesis from the University of Birmingham UK opens new research avenues in the use of Pulsar Timing Arrays (PTAs) to study populations of super-massive black hole binaries through gravitational-wave observations. Chiara Mingarelli's work has shown for the first time that PTAs can yield information about the non-linear dynamics of the gravitational field. This is possible because PTAs capture, at the same time, radiation from the same source emitted at stages of its binary evolution that are separated by thousands of years. Dr. Mingarelli, who is the recipient of a Marie Curie International Outgoing Fellowship, has also been amongst the pioneers of the technique that will allow us to probe the level of anisotropy of the diffuse gravitational-wave background radiation from the whole population of super-massive black hole binaries in the Universe. Indeed, future observations will provide us with hints about the distribution of galaxies harboring massive black holes and insights into end products of hierarchical mergers of galaxies.
Book Synopsis Pulsars as Astrophysical Laboratories for Nuclear and Particle Physics by : Fridolin Weber
Download or read book Pulsars as Astrophysical Laboratories for Nuclear and Particle Physics written by Fridolin Weber and published by Routledge. This book was released on 2017-09-18 with total page 697 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pulsars, generally accepted to be rotating neutron stars, are dense, neutron-packed remnants of massive stars that blew apart in supernova explosions. They are typically about 10 kilometers across and spin rapidly, often making several hundred rotations per second. Depending on star mass, gravity compresses the matter in the cores of pulsars up to more than ten times the density of ordinary atomic nuclei, thus providing a high-pressure environment in which numerous particle processes, from hyperon population to quark deconfinement to the formation of Boson condensates, may compete with each other. There are theoretical suggestions of even more ""exotic"" processes inside pulsars, such as the formation of absolutely stable strange quark matter, a configuration of matter even more stable than the most stable atomic nucleus, ^T56Fe. In the latter event, pulsars would be largely composed of pure quark matter, eventually enveloped in nuclear crust matter. These features combined with the tremendous recent progress in observational radio and x-ray astronomy make pulsars nearly ideal probes for a wide range of physical studies, complementing the quest of the behavior of superdense matter in terrestrial collider experiments. Written by an eminent author, Pulsars as Astrophysical Laboratories for Nuclear and Particle Physics gives a reliable account of the present status of such research, which naturally is to be performed at the interface between nuclear physics, particle physics, and Einstein's theory of relativity.
Download or read book Pulsars written by Alexander D. Morozov and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pulsars are highly magnetised, rotating neutron stars that emit a beam of electromagnetic radiation. The radiation can only be observed when the beam of emission is pointing towards the Earth. This is called the lighthouse effect and gives rise to the pulsed nature that gives pulsars their name. This book reviews research from around the globe in the field of pulsars including anomalous X-ray pulsars; the arrival directions of ultrahigh energy extensive air particles registered at the Yakutsk extensive air shower array from 1974 to 2007; the observed rotation period of pulsar time properties; measuring the moment of inertia of the double pulsar and its usefulness in testing modified models of gravity and others.
