Gravitational Physics: Testing Gravity from Submillimeter to Cosmic

Gravitational Physics: Testing Gravity from Submillimeter to Cosmic PDF Author: H.A. Morales-Tecotl
Publisher: American Institute of Physics
ISBN: 9780735408050
Category : Science
Languages : en
Pages : 0

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Book Description
General Relativity today is able to explain many known gravitational effects at the level of the solar system. However open problems remain like dark matter and dark energy present at galaxy and or cosmic scales has only recently been explored. The VIII Mexican School on gravitational and Mathematical Physics "speakable and unspeakable in gravitational physics: testing gravity theories from submillimeter to cosmic scale" was proposed to discuss and exchanges present and future gravitational tests.

Gravitational Physics: Testing Gravity from Submillimeter to Cosmic

Gravitational Physics: Testing Gravity from Submillimeter to Cosmic PDF Author: H.A. Morales-Tecotl
Publisher: American Institute of Physics
ISBN: 9780735408050
Category : Science
Languages : en
Pages : 0

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Book Description
General Relativity today is able to explain many known gravitational effects at the level of the solar system. However open problems remain like dark matter and dark energy present at galaxy and or cosmic scales has only recently been explored. The VIII Mexican School on gravitational and Mathematical Physics "speakable and unspeakable in gravitational physics: testing gravity theories from submillimeter to cosmic scale" was proposed to discuss and exchanges present and future gravitational tests.

Theory and Experiment in Gravitational Physics

Theory and Experiment in Gravitational Physics PDF Author: Clifford M. Will
Publisher: Cambridge University Press
ISBN: 1107117445
Category : Science
Languages : en
Pages : 363

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Book Description
A comprehensive review of the testing and research conducted on Einstein's theory of general relativity.

Theory and Experiment in Gravitational Physics

Theory and Experiment in Gravitational Physics PDF Author: Clifford M. Will
Publisher: Cambridge University Press
ISBN: 1108577490
Category : Science
Languages : en
Pages : 363

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Book Description
The 2015 centenary of the publication of Einstein's general theory of relativity, and the first detection of gravitational waves have focused renewed attention on the question of whether Einstein was right. This review of experimental gravity provides a detailed survey of the intensive testing of Einstein's theory of gravity, including tests in the emerging strong-field dynamical regime. It discusses the theoretical frameworks needed to analyze gravitational theories and interpret experiments. Completely revised and updated, this new edition features coverage of new alternative theories of gravity, a unified treatment of gravitational radiation, and the implications of the latest binary pulsar observations. It spans the earliest tests involving the Solar System to the latest tests using gravitational waves detected from merging black holes and neutron stars. It is a comprehensive reference for researchers and graduate students working in general relativity, cosmology, particle physics and astrophysics.

Gravitational Physics

Gravitational Physics PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 0309172675
Category : Science
Languages : en
Pages : 129

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Book Description
Gravitational Physics assesses the achievements of the field over the past decade in both theory and experiment, identifies the most promising opportunities for research in the next decade, and describes the resources necessary to realize those opportunities. A major theme running through the opportunities is the exploration of strong gravitational fields, such as those associated with black holes. The book, part of the ongoing decadal survey Physics in a New Era, examines topics such as gravitational waves and their detection, classical and quantum theory of strong gravitational fields, precision measurements, and astronomical observations relevant to the predictions of Einstein's theory of general relativity.

Extracting Physics from Gravitational Waves

Extracting Physics from Gravitational Waves PDF Author: Tjonnie G. F. Li
Publisher: Springer
ISBN: 3319192736
Category : Science
Languages : en
Pages : 243

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Book Description
Tjonnie Li's thesis covers two applications of Gravitational Wave astronomy: tests of General Relativity in the strong-field regime and cosmological measurements. The first part of the thesis focuses on the so-called TIGER, i.e. Test Infrastructure for General Relativity, an innovative Bayesian framework for performing hypothesis tests of modified gravity using ground-based GW data. After developing the framework, Li simulates a variety of General Relativity deviations and demonstrates the ability of the aforementioned TIGER to measure them. The advantages of the method are nicely shown and compared to other, less generic methods. Given the extraordinary implications that would result from any measured deviation from General Relativity, it is extremely important that a rigorous statistical approach for supporting these results would be in place before the first Gravitational Wave detections begin. In developing TIGER, Tjonnie Li shows a large amount of creativity and originality, and his contribution is an important step in the direction of a possible discovery of a deviation (if any) from General Relativity. In another section, Li's thesis deals with cosmology, describing an exploratory study where the possibility of cosmological parameters measurement through gravitational wave compact binary coalescence signals associated with electromagnetic counterparts is evaluated. In particular, the study explores the capabilities of the future Einstein Telescope observatory. Although of very long term-only applicability, this is again a thorough investigation, nicely put in the context of the current and the future observational cosmology.

Extracting Physics from Gravitational Waves

Extracting Physics from Gravitational Waves PDF Author: Tjonnie G. F. Li
Publisher:
ISBN: 9783319192741
Category :
Languages : en
Pages :

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Book Description
Tjonnie Li's thesis covers two applications of Gravitational Wave astronomy: tests of General Relativity in the strong-field regime and cosmological measurements. The first part of the thesis focuses on the so-called TIGER, i.e. Test Infrastructure for General Relativity, an innovative Bayesian framework for performing hypothesis tests of modified gravity using ground-based GW data. After developing the framework, Li simulates a variety of General Relativity deviations and demonstrates the ability of the aforementioned TIGER to measure them. The advantages of the method are nicely shown and compared to other, less generic methods. Given the extraordinary implications that would result from any measured deviation from General Relativity, it is extremely important that a rigorous statistical approach for supporting these results would be in place before the first Gravitational Wave detections begin. In developing TIGER, Tjonnie Li shows a large amount of creativity and originality, and his contribution is an important step in the direction of a possible discovery of a deviation (if any) from General Relativity. In another section, Li's thesis deals with cosmology, describing an exploratory study where the possibility of cosmological parameters measurement through gravitational wave compact binary coalescence signals associated with electromagnetic counterparts is evaluated. In particular, the study explores the capabilities of the future Einstein Telescope observatory. Although of very long term-only applicability, this is again a thorough investigation, nicely put in the context of the current and the future observational cosmology. The author is the winner of the 2013 Stefano Braccini Thesis Prize awarded by the Gravitational Wave International Committee.

Physics of Gravitational Waves

Physics of Gravitational Waves PDF Author: Arun Kenath
Publisher: Springer Nature
ISBN: 3031304632
Category : Science
Languages : en
Pages : 61

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Book Description
This book provides a concise introduction to the physics of gravitational waves. It is aimed at graduate-level students and PhD scholars. Ever since the discovery of gravitational waves in 2016, gravitational wave astronomy has been adding to our understanding of the universe. Gravitational waves have been detected in the past few years from several transient events such as merging stellar-mass black holes, binary neutron stars, etc. These waves have frequencies in a band ranging from a few hundred hertz to around a kilohertz to which LIGO type instruments are sensitive. LISA will be sensitive to much lower range of frequencies from SMBH mergers. Apart from these cataclysmic burst events, there are innumerable sources of radiation which are continuously emitting gravitational waves of all frequencies. These include a whole mass range of compact binary and isolated compact objects and close planetary stellar entities. This book discusses the gravitational wave background produced in typical frequency ranges from such sources emitting over a Hubble time and the fluctuations in the h values measured in the usual devices. Also discussed are the high-frequency thermal background gravitational radiation from hot stellar interiors and newly formed compact objects. The reader will also learn how gravitational waves provide a testing tool for various theories of gravity, i.e. general relativity and extended theories of gravity, and will be the definitive test for general relativity.

Probing the Nature of Gravity

Probing the Nature of Gravity PDF Author: C.W.F. Everitt
Publisher: Springer
ISBN: 9781461426042
Category : Science
Languages : en
Pages : 574

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Book Description
Observing our Universe and its evolution with ever increasing sensitivity from ground-based or space-borne telescopes is posing great challenges to Fundamental Physics and Astronomy. The remnant cosmic microwave background, as beautifully measured by successive space missions COBE, WMAP, and now PLANCK, provides a unique probe of the very early stages of our Universe. The red-shift of atomic lines in distant galaxies, the dynamics of pulsars, the large scale structure of galaxies, and black holes are a few manifestations of the theory of General Relativity. Yet, today, we understand only 4% of the mass of our Universe, the rest being called dark energy and dark matter, both of unknown origin! A second family of space missions is currently emerging; rather than designing ever more re nedobservationalinstruments,physicistsandengineersseekalsotousethespaceenvironment to perform high-precision tests of the fundamental laws of physics. The technology required for such tests has become available only over the course of the last decades. Clocks of high accuracy are an example. They are based on advances in atomic and laser physics, such as cold atoms, enabling a new generation of highly sensitive quantum sensors for ground and space experiments. Two experiments in space have now tested Einstein’s relativity theory: • Several decades ago, Gravity Probe A con rmed the accuracy of the gravitational red-shift ?5 according to general relativity to a level of 7× 10 [R. F. C. Vessot et al. , Test of Relativistic Gravitation with a Space-Borne Hydrogen Maser, Phys. Rev. Lett. 45, 2081–2084 (1980)].

Gravitation in Astrophysics

Gravitation in Astrophysics PDF Author: B. Carter
Publisher: Springer Science & Business Media
ISBN: 1461318971
Category : Science
Languages : en
Pages : 403

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Book Description
With the discovery of pulsars, quasars, and galactic X-ray sources in the late 60's and early 70's, and the coincident expansion in the search for gravitational waves, rela tivistic gravity assumed an important place in the astrophysics of localized objects. Only by pushing Einstein's solar-system-tested general theory of relativity to the study of the extremes of gravitational collapse and its outcomes did it seem that one could explain these frontier astronomical phenomena. This conclusion continues to be true today. Relativistic gravity had always played the central role in cosmology. The discov ery of the cosmic background radiation in 1965, the increasing understanding of matter physics at high energies in the decades following, and the growing wealth of observations on the large scale structure meant that it was possible to make increasingly detailed mod els of the universe, both today and far in the past. This development, not accidentally, was contemporary to that for localized objects described above.

From Quantum To Cosmos: Fundamental Physics Research In Space

From Quantum To Cosmos: Fundamental Physics Research In Space PDF Author: Slava G Turyshev
Publisher: World Scientific
ISBN: 9814468444
Category : Science
Languages : en
Pages : 764

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Book Description
Space-based laboratory research in fundamental physics is an emerging research discipline that offers great discovery potential and at the same time could drive the development of technological advances which are likely to be important to scientists and technologists in many other different research fields. The articles in this review volume have been contributed by participants of the international workshop “From Quantum to Cosmos: Fundamental Physics Research in Space” held at the Airlie Center in Warrenton, Virginia, USA, on May 21-24, 2006. This unique volume discusses the advances in our understanding of fundamental physics that are anticipated in the near future, and evaluates the discovery potential of a number of recently proposed space-based gravitational experiments. Specific research areas covered include various tests of general relativity and alternative theories, search of physics beyond the Standard Model, investigations of possible violations of the equivalence principle, search for new hypothetical long- and short-range forces, variations of fundamental constants, tests of Lorentz invariance and attempts at unification of the fundamental interactions. The book also encompasses experiments aimed at the discovery of novel phenomena, including dark matter candidates, and studies of dark energy.