Searching for Stochastic Gravitational Waves Using Co-located Interferometric Detectors

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Publisher :
ISBN 13 :
Total Pages : 85 pages
Book Rating : 4.:/5 (174 download)

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Book Synopsis Searching for Stochastic Gravitational Waves Using Co-located Interferometric Detectors by : Nickolas Fotopoulos

Download or read book Searching for Stochastic Gravitational Waves Using Co-located Interferometric Detectors written by Nickolas Fotopoulos and published by . This book was released on 2006 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite their intrinsic advantages due to co-location, the two LIGO (Laser Interferometer Gravitational Wave Observatory) Hanford interferometers have not been used in the search for the stochastic gravitational wave background due to their coupling to a shared environment, which may be comparable to or exceed any gravitational signal. In this thesis, using data from LIGO's fourth science run, we demonstrate a technique to relate the H1-H2 coherence to coupling with physical environmental channels. We show that the correspondence is tight enough to correctly identify regions of high and low coupling and the nature of the coupling in the data set. A simple thresholding provides frequency vetoes, which we can use to derive a significantly cleaner coherence spectrum. Next, using this frequency veto technique and data from the first epoch of LIGO's fifth, currently running science run, we design, implement, and perform a search for astrophysical populations of gravitational wave emitters, which emit predominantly in the kilohertz region of the spectrum, a region totally inaccessible to detectors separated by thousands of kilometers. As well as providing us with a proof-of-concept, the results provide an advanced look at the physical results to come from H1-H2 by the end of S5.

Advanced Interferometers and the Search for Gravitational Waves

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Publisher : Springer
ISBN 13 : 3319037927
Total Pages : 392 pages
Book Rating : 4.3/5 (19 download)

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Book Synopsis Advanced Interferometers and the Search for Gravitational Waves by : Massimo Bassan

Download or read book Advanced Interferometers and the Search for Gravitational Waves written by Massimo Bassan and published by Springer. This book was released on 2014-07-08 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: The search for gravitational radiation with optical interferometers is gaining momentum worldwide. Beside the VIRGO and GEO gravitational wave observatories in Europe and the two LIGOs in the United States, which have operated successfully during the past decade, further observatories are being completed (KAGRA in Japan) or planned (ILIGO in India). The sensitivity of the current observatories, although spectacular, has not allowed direct discovery of gravitational waves. The advanced detectors (Advanced LIGO and Advanced Virgo) at present in the development phase will improve sensitivity by a factor of 10, probing the universe up to 200 Mpc for signal from inspiraling binary compact stars. This book covers all experimental aspects of the search for gravitational radiation with optical interferometers. Every facet of the technological development underlying the evolution of advanced interferometers is thoroughly described, from configuration to optics and coatings and from thermal compensation to suspensions and controls. All key ingredients of an advanced detector are covered, including the solutions implemented in first-generation detectors, their limitations, and how to overcome them. Each issue is addressed with special reference to the solution adopted for Advanced VIRGO but constant attention is also paid to other strategies, in particular those chosen for Advanced LIGO.

Detecting the Stochastic Gravitational-Wave Background

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Publisher : Morgan & Claypool Publishers
ISBN 13 : 1681740826
Total Pages : 57 pages
Book Rating : 4.6/5 (817 download)

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Book Synopsis Detecting the Stochastic Gravitational-Wave Background by : Carlo Nicola Colacino

Download or read book Detecting the Stochastic Gravitational-Wave Background written by Carlo Nicola Colacino and published by Morgan & Claypool Publishers. This book was released on 2017-12-20 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: The stochastic gravitational-wave background (SGWB) is by far the most difficult source of gravitational radiation detect. At the same time, it is the most interesting and intriguing one. This book describes the initial detection of the SGWB and describes the underlying mathematics behind one of the most amazing discoveries of the 21st century. On the experimental side it would mean that interferometric gravitational wave detectors work even better than expected. On the observational side, such a detection could give us information about the very early Universe, information that could not be obtained otherwise. Even negative results and improved upper bounds could put constraints on many cosmological and particle physics models.

Fundamentals Of Interferometric Gravitational Wave Detectors (Second Edition)

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Publisher : World Scientific
ISBN 13 : 9813146206
Total Pages : 336 pages
Book Rating : 4.8/5 (131 download)

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Book Synopsis Fundamentals Of Interferometric Gravitational Wave Detectors (Second Edition) by : Peter R Saulson

Download or read book Fundamentals Of Interferometric Gravitational Wave Detectors (Second Edition) written by Peter R Saulson and published by World Scientific. This book was released on 2017-02-16 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: 'The content of the Saulson’s book remains valid and offers a versatile introduction to gravitational wave astronomy. The book is appropriate for undergraduate students and can be read by graduate students and researchers who want to be involved in either the theoretical or the experimental traits of the study of gravitational waves.'Contemporary PhysicsLIGO's recent discovery of gravitational waves was headline news around the world. Many people will want to understand more about what a gravitational wave is, how LIGO works, and how LIGO functions as a detector of gravitational waves.This book aims to communicate the basic logic of interferometric gravitational wave detectors to students who are new to the field. It assumes that the reader has a basic knowledge of physics, but no special familiarity with gravitational waves, with general relativity, or with the special techniques of experimental physics. All of the necessary ideas are developed in the book.The first edition was published in 1994. Since the book is aimed at explaining the physical ideas behind the design of LIGO, it stands the test of time. For the second edition, an Epilogue has been added; it brings the treatment of technical details up to date, and provides references that would allow a student to become proficient with today's designs.

Detecting a Stochastic Gravitational Wave Background with Space-based Interferometers

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Publisher :
ISBN 13 :
Total Pages : 256 pages
Book Rating : 4.:/5 (93 download)

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Book Synopsis Detecting a Stochastic Gravitational Wave Background with Space-based Interferometers by : Matthew Raymond Adams

Download or read book Detecting a Stochastic Gravitational Wave Background with Space-based Interferometers written by Matthew Raymond Adams and published by . This book was released on 2014 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: The detection of a stochastic background of gravitational waves could significantly impact our understanding of the physical processes that shaped the early Universe. The challenge lies in separating the cosmological signal from other stochastic processes such as instrument noise and astrophysical foregrounds. One approach is to build two or more detectors and cross correlate their output, thereby enhancing the common gravitational wave signal relative to the uncorrelated instrument noise. When only one detector is available, as will likely be the case with space based gravitational wave astronomy, alternative analysis techniques must be developed. Here we develop an end to end Bayesian analysis technique for detecting a stochastic background with a gigameter Laser Interferometer Space Antenna (LISA) operating with both 6- and 4-links. Our technique requires a detailed understanding of the instrument noise and astrophysical foregrounds. In the millihertz frequency band, the predominate foreground signal will be unresolved white dwarf binaries in the galaxy. We consider how the information from multiple detections can be used to constrain astrophysical population models, and present a method for constraining population models using a Hierarchical Bayesian modeling approach which simultaneously infers the source parameters and population model and provides the joint probability distributions for both. We find that a mission that is able to resolve ~ 5000 of the shortest period binaries will be able to constrain the population model parameters, including the chirp mass distribution and a characteristic galaxy disk radius to within a few percent. This compares favorably to existing bounds, where electromagnetic observations of stars in the galaxy constrain disk radii to within 20%. Having constrained the galaxy shape parameters, we obtain posterior distribution functions for the instrument noise parameters, the galaxy level and modulation parameters, and the stochastic background energy density. We find that we are able to detect a scale-invariant stochastic background with energy density as low as Omega gw= 2x10 -13 for a 6-link interferometer and Omega gw = 5x10 -13 for a 4-link interferometer with one year of data.

Gravitational Wave Data Analysis

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Publisher : Springer Science & Business Media
ISBN 13 : 9400911858
Total Pages : 321 pages
Book Rating : 4.4/5 (9 download)

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Book Synopsis Gravitational Wave Data Analysis by : B.F. Schutz

Download or read book Gravitational Wave Data Analysis written by B.F. Schutz and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: The articles in this book represent the major contributions at the NATO Advanced Research Workshop that was held from 6 to 9 July 1987 in the magnificent setting of Dyffryn House and Gardens, in St. Nicholas, just outside Cardiff, Wales. The idea for such a meeting arose in discussions that I had in 1985 and 1986 with many of the principal members of the various groups building prototype laser-interferometric gravitational wave detectors. It became clear that the proposals that these groups were planning to submit for large-scale detectors would have to address questions like the following: • What computing hardware might be required to sift through data corning in at rates of several gigabytes per day for gravitational wave events that might last only a second or less and occur as rarely as once a month? • What software would be required for this task, and how much effort would be required to write it? • Given that every group accepted that a worldwide network of detectors operating in co incidence with one another was required in order to provide both convincing evidence of detections of gravitational waves and sufficient information to determine the amplitude and direction of the waves that had been detected, what sort of problems would the necessary data exchanges raise? Yet most of the effort in these groups had, quite naturally, been concentrated on the detector systems.

Advanced Interferometric Gravitational-wave Detectors (In 2 Volumes)

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Publisher : World Scientific
ISBN 13 : 9813146095
Total Pages : 808 pages
Book Rating : 4.8/5 (131 download)

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Book Synopsis Advanced Interferometric Gravitational-wave Detectors (In 2 Volumes) by : Grote Hartmut

Download or read book Advanced Interferometric Gravitational-wave Detectors (In 2 Volumes) written by Grote Hartmut and published by World Scientific. This book was released on 2019-03-25 with total page 808 pages. Available in PDF, EPUB and Kindle. Book excerpt: The detection of gravitational waves in 2015 has been hailed a scientific breakthrough and one of the most significant scientific discoveries of the 21st century. Gravitational-wave physics and astronomy are emerging as a new frontier in understanding the universe.Advanced Interferometric Gravitational-Wave Detectors brings together many of the world's top experts to deliver an authoritative and in-depth treatment on current and future detectors. Volume I is devoted to the essentials of gravitational-wave detectors, presenting the physical principles behind large-scale precision interferometry, the physics of the underlying noise sources that limit interferometer sensitivity, and an explanation of the key enabling technologies that are used in the detectors. Volume II provides an in-depth look at the Advanced LIGO and Advanced Virgo interferometers, as well as examining future interferometric detector concepts. This two-volume set will provide students and researchers the comprehensive background needed to understand gravitational-wave detectors.

Gravity's Shadow

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Publisher : University of Chicago Press
ISBN 13 : 9780226113777
Total Pages : 864 pages
Book Rating : 4.1/5 (137 download)

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Book Synopsis Gravity's Shadow by : Harry Collins

Download or read book Gravity's Shadow written by Harry Collins and published by University of Chicago Press. This book was released on 2004-09-04 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt: According to the theory of relativity, we are constantly bathed in gravitational radiation. When stars explode or collide, a portion of their mass becomes energy that disturbs the very fabric of the space-time continuum like ripples in a pond. But proving the existence of these waves has been difficult; the cosmic shudders are so weak that only the most sensitive instruments can be expected to observe them directly. Fifteen times during the last thirty years scientists have claimed to have detected gravitational waves, but so far none of those claims have survived the scrutiny of the scientific community. Gravity's Shadow chronicles the forty-year effort to detect gravitational waves, while exploring the meaning of scientific knowledge and the nature of expertise. Gravitational wave detection involves recording the collisions, explosions, and trembling of stars and black holes by evaluating the smallest changes ever measured. Because gravitational waves are so faint, their detection will come not in an exuberant moment of discovery but through a chain of inference; for forty years, scientists have debated whether there is anything to detect and whether it has yet been detected. Sociologist Harry Collins has been tracking the progress of this research since 1972, interviewing key scientists and delineating the social process of the science of gravitational waves. Engagingly written and authoritatively comprehensive, Gravity's Shadow explores the people, institutions, and government organizations involved in the detection of gravitational waves. This sociological history will prove essential not only to sociologists and historians of science but to scientists themselves.

Nanohertz Gravitational Wave Astronomy

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Publisher : CRC Press
ISBN 13 : 1000484785
Total Pages : 147 pages
Book Rating : 4.0/5 (4 download)

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Book Synopsis Nanohertz Gravitational Wave Astronomy by : Stephen R. Taylor

Download or read book Nanohertz Gravitational Wave Astronomy written by Stephen R. Taylor and published by CRC Press. This book was released on 2021-11-22 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanohertz Gravitational Wave Astronomy explores the exciting hunt for low frequency gravitational waves by using the extraordinary timing precision of pulsars. The book takes the reader on a tour across the expansive gravitational-wave landscape, from LIGO detections to the search for polarization patterns in the Cosmic Microwave Background, then hones in on the band of nanohertz frequencies that Pulsar Timing Arrays (PTAs) are sensitive to. Within this band may lie many pairs of the most massive black holes in the entire Universe, all radiating in chorus to produce a background of gravitational waves. The book shows how such extra-Galactic gravitational waves can alter the arrival times of radio pulses emanating from monitored Galactic pulsars, and how we can use the pattern of correlated timing deviations from many pulsars to tease out the elusive signal. The book takes a pragmatic approach to data analysis, explaining how it is performed in practice within classical and Bayesian statistics, as well as the numerous strategies one can use to optimize numerical Bayesian searches in PTA analyses. It closes with a complete discussion of the data model for nanohertz gravitational wave searches, and an overview of the past achievements, present efforts, and future prospects for PTAs. The book is accessible to upper division undergraduate students and graduate students of astronomy, and also serves as a useful desk reference for experts in the field. Key features: Contains a complete derivation of the pulsar timing response to gravitational waves, and the overlap reduction function for PTAs. Presents a comprehensive overview of source astrophysics, and the dynamical influences that shape the gravitational wave signals that PTAs are sensitive to. Serves as a detailed primer on gravitational-wave data analysis and numerical Bayesian techniques for PTAs.

Fundamentals of Interferometric Gravitational Wave Detectors

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Publisher :
ISBN 13 : 9789813146198
Total Pages : pages
Book Rating : 4.1/5 (461 download)

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Book Synopsis Fundamentals of Interferometric Gravitational Wave Detectors by : Peter R. Saulson

Download or read book Fundamentals of Interferometric Gravitational Wave Detectors written by Peter R. Saulson and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The search for gravitational waves -- The nature of gravitational waves -- Sources of gravitational waves -- Linear systems, signals and noise -- Optical readout noise -- Folded interferometer arms -- Thermal noise -- Seismic noise and vibration isolation -- Design features of large interferometers -- Null instruments -- Feedback control systems -- An interferometer as an active null instrument -- Resonant mass gravitational wave detectors -- Detecting gravitational wave signals -- Gravitational wave astronomy -- The discovery of gravitational waves -- Epilogue

Overview Of Gravitational Waves, An: Theory, Sources And Detection

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Publisher : World Scientific
ISBN 13 : 9813141778
Total Pages : 326 pages
Book Rating : 4.8/5 (131 download)

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Book Synopsis Overview Of Gravitational Waves, An: Theory, Sources And Detection by : Gerard Auger

Download or read book Overview Of Gravitational Waves, An: Theory, Sources And Detection written by Gerard Auger and published by World Scientific. This book was released on 2017-02-15 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes detection techniques used to search for and analyze gravitational waves (GW). It covers the whole domain of GW science, starting from the theory and ending with the experimental techniques (both present and future) used to detect them.The theoretical sections of the book address the theory of general relativity and of GW, followed by the theory of GW detection. The various sources of GW are described as well as the methods used to analyse them and to extract their physical parameters. It includes an analysis of the consequences of GW observations in terms of astrophysics as well as a description of the different detectors that exist and that are planned for the future.With the recent announcement of GW detection and the first results from LISA Pathfinder, this book will allow non-specialists to understand the present status of the field and the future of gravitational wave science.

Recueil factice d'articles de presse sur les représentations de pièces des auteurs suivants

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Publisher :
ISBN 13 :
Total Pages : 30 pages
Book Rating : 4.:/5 (493 download)

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Book Synopsis Recueil factice d'articles de presse sur les représentations de pièces des auteurs suivants by :

Download or read book Recueil factice d'articles de presse sur les représentations de pièces des auteurs suivants written by and published by . This book was released on with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Advanced Gravitational Wave Detectors

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Publisher : Cambridge University Press
ISBN 13 : 0521874297
Total Pages : 345 pages
Book Rating : 4.5/5 (218 download)

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Book Synopsis Advanced Gravitational Wave Detectors by : D. G. Blair

Download or read book Advanced Gravitational Wave Detectors written by D. G. Blair and published by Cambridge University Press. This book was released on 2012-02-16 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduces the technology and reviews the experimental issues; a valuable reference for graduate students and researchers in physics and astrophysics.

Fourteenth Marcel Grossmann Meeting, The: On Recent Developments In Theoretical And Experimental General Relativity, Astrophysics, And Relativistic Field Theories - Proceedings Of The Mg14 Meeting On General Relativity (In 4 Parts)

Download Fourteenth Marcel Grossmann Meeting, The: On Recent Developments In Theoretical And Experimental General Relativity, Astrophysics, And Relativistic Field Theories - Proceedings Of The Mg14 Meeting On General Relativity (In 4 Parts) PDF Online Free

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Publisher : World Scientific
ISBN 13 : 9813226617
Total Pages : 4784 pages
Book Rating : 4.8/5 (132 download)

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Book Synopsis Fourteenth Marcel Grossmann Meeting, The: On Recent Developments In Theoretical And Experimental General Relativity, Astrophysics, And Relativistic Field Theories - Proceedings Of The Mg14 Meeting On General Relativity (In 4 Parts) by : Massimo Bianchi

Download or read book Fourteenth Marcel Grossmann Meeting, The: On Recent Developments In Theoretical And Experimental General Relativity, Astrophysics, And Relativistic Field Theories - Proceedings Of The Mg14 Meeting On General Relativity (In 4 Parts) written by Massimo Bianchi and published by World Scientific. This book was released on 2017-10-13 with total page 4784 pages. Available in PDF, EPUB and Kindle. Book excerpt: The four volumes of the proceedings of MG14 give a broad view of all aspects of gravitational physics and astrophysics, from mathematical issues to recent observations and experiments. The scientific program of the meeting included 35 morning plenary talks over 6 days, 6 evening popular talks and 100 parallel sessions on 84 topics over 4 afternoons.Volume A contains plenary and review talks ranging from the mathematical foundations of classical and quantum gravitational theories including recent developments in string theory, to precision tests of general relativity including progress towards the detection of gravitational waves, and from supernova cosmology to relativistic astrophysics, including topics such as gamma ray bursts, black hole physics both in our galaxy and in active galactic nuclei in other galaxies, and neutron star, pulsar and white dwarf astrophysics.The remaining volumes include parallel sessions which touch on dark matter, neutrinos, X-ray sources, astrophysical black holes, neutron stars, white dwarfs, binary systems, radiative transfer, accretion disks, quasars, gamma ray bursts, supernovas, alternative gravitational theories, perturbations of collapsed objects, analog models, black hole thermodynamics, numerical relativity, gravitational lensing, large scale structure, observational cosmology, early universe models and cosmic microwave background anisotropies, inhomogeneous cosmology, inflation, global structure, singularities, chaos, Einstein-Maxwell systems, wormholes, exact solutions of Einstein's equations, gravitational waves, gravitational wave detectors and data analysis, precision gravitational measurements, quantum gravity and loop quantum gravity, quantum cosmology, strings and branes, self-gravitating systems, gamma ray astronomy, cosmic rays and the history of general relativity.

Gravitational Waves: Sources And Detectors - Proceedings Of The International Conference

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Publisher : World Scientific
ISBN 13 : 9814547174
Total Pages : 382 pages
Book Rating : 4.8/5 (145 download)

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Book Synopsis Gravitational Waves: Sources And Detectors - Proceedings Of The International Conference by : Francesco Fidecaro

Download or read book Gravitational Waves: Sources And Detectors - Proceedings Of The International Conference written by Francesco Fidecaro and published by World Scientific. This book was released on 1997-04-19 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: The construction of large interferometers for gravitational wave detection is now in progress in Europe and in the United States. To stimulate theoretical and experimental work a conference was organised in Cascina (Italy), where the Virgo interferometer is being built. Review talks discussed the expected signals, covering general relativity and astrophysical aspects (binary coalescence, supernovae, neutron stars, cosmological background). Experimental talks gave the current status of the running experiments (resonant bars, prototype interferometers, satellite tracking) and of the planned ones (large interferometers, ultra cryogenic resonating bars and spheres, space missions).

Gravitational Waves

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Publisher :
ISBN 13 : 9780750313933
Total Pages : 28 pages
Book Rating : 4.3/5 (139 download)

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Book Synopsis Gravitational Waves by : Amber L. Stuver

Download or read book Gravitational Waves written by Amber L. Stuver and published by . This book was released on 2019 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The detection of gravitational waves has ushered in a new era of gravitational wave astronomy and added a new medium to multi-messenger astronomy. This book examines the theoretical foundation of gravitational waves and the state of the art of gravitational wave detection including interferometric detectors and pulsar timing arrays. The design and sensitivity of the LIGO interferometers are examined. The source and data analysis method for each of the four main classes of gravitational waves (compact binary coalescence, burst, continuous, and stochastic) are described. A summary of the gravitational waves that have been detected as of January 2019 is presented along with what gravitational wave astronomy has been extracted from these observations. Finally, what the future of gravitational wave exploration looks like in terms of ground-based and space-based detectors is presented.

Advanced Interferometric Gravitational-wave Detectors: Essentials of gravitational wave detectors

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Publisher :
ISBN 13 : 9789813146105
Total Pages : pages
Book Rating : 4.1/5 (461 download)

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Book Synopsis Advanced Interferometric Gravitational-wave Detectors: Essentials of gravitational wave detectors by : David H. Reitze

Download or read book Advanced Interferometric Gravitational-wave Detectors: Essentials of gravitational wave detectors written by David H. Reitze and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: