Gravitational Wave Data Analysis

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Analysis Of Gravitational Wave Data

Author : Piotr Jaranowski
ISBN : 9780521864596
Genre : Mathematics
File Size : 41.16 MB
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Research in this field has grown considerably in recent years due to the commissioning of a world-wide network of large-scale detectors. This network collects a very large amount of data that is currently being analyzed and interpreted. This book introduces researchers entering the field, and researchers currently analyzing the data, to the field of gravitational-wave data analysis. An ideal starting point for studying the issues related to current gravitational-wave research, the book contains detailed derivations of the basic formulae related to the detectors' responses and maximum-likelihood detection. These derivations are much more complete and more pedagogical than those found in current research papers, and will enable readers to apply general statistical concepts to the analysis of gravitational-wave signals. It also discusses new ideas on devising the efficient algorithms needed to perform data analysis.
Category: Mathematics

Gravitational Wave Data Analysis

Author : B.F. Schutz
ISBN : 9789400911857
Genre : Mathematics
File Size : 75.74 MB
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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.
Category: Mathematics

Detection Data Analysis And Astrophysics Of Gravitational Waves

Author : Kenneth Rainer Corley
ISBN : OCLC:1158586853
Genre :
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Second, we explore the follow-up potential of the Cherenkov Telescope Array to gravitational-wave sources at high energies. Last, we show that publicly available gravitational-wave event information is capable of estimating the chirp masses of gravitational-wave sources, thereby identifying promising mergers for electromagnetic follow-up.

Gravitational Wave Physics And Astronomy

Author : Jolien D. E. Creighton
ISBN : 9783527636044
Genre : Science
File Size : 78.48 MB
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This most up-to-date, one-stop reference combines coverage of both theory and observational techniques, with introductory sections to bring all readers up to the same level. Written by outstanding researchers directly involved with the scientific program of the Laser Interferometer Gravitational-Wave Observatory (LIGO), the book begins with a brief review of general relativity before going on to describe the physics of gravitational waves and the astrophysical sources of gravitational radiation. Further sections cover gravitational wave detectors, data analysis, and the outlook of gravitational wave astronomy and astrophysics.
Category: Science

First Stage Lisa Data Processing And Gravitational Wave Data Analysis

Author : Yan Wang
ISBN : 9783319263892
Genre : Science
File Size : 75.5 MB
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This thesis covers a diverse set of topics related to space-based gravitational wave detectors such as the Laser Interferometer Space Antenna (LISA). The core of the thesis is devoted to the preprocessing of the interferometric link data for a LISA constellation, specifically developing optimal Kalman filters to reduce arm length noise due to clock noise. The approach is to apply Kalman filters of increasing complexity to make optimal estimates of relevant quantities such as constellation arm length, relative clock drift, and Doppler frequencies based on the available measurement data. Depending on the complexity of the filter and the simulated data, these Kalman filter estimates can provide up to a few orders of magnitude improvement over simpler estimators. While the basic concept of the LISA measurement (Time Delay Interferometry) was worked out some time ago, this work brings a level of rigor to the processing of the constellation-level data products. The thesis concludes with some topics related to the eLISA such as a new class of phenomenological waveforms for extreme mass-ratio inspiral sources (EMRIs, one of the main source for eLISA), an octahedral space-based GW detector that does not require drag-free test masses, and some efficient template-search algorithms for the case of relatively high SNR signals.
Category: Science

Gravitational Wave Detection And Data Analysis For Pulsar Timing Arrays

Author : Rutger van Haasteren
ISBN : 9783642395994
Genre : Science
File Size : 26.64 MB
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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.
Category: Science

The Detection Of Gravitational Waves

Author : David G. Blair
ISBN : 0521021022
Genre : Science
File Size : 86.73 MB
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In this 1991 text leading scientists in the field provide an art account of the physics and technology of gravitational wave detection.
Category: Science

Advanced Gravitational Wave Detectors

Author : D. G. Blair
ISBN : 9780521874298
Genre : NATURE
File Size : 68.18 MB
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Introduces the technology and reviews the experimental issues; a valuable reference for graduate students and researchers in physics and astrophysics.
Category: NATURE

Gravitational Waves

Author : Michele Maggiore
ISBN : 9780198570745
Genre : Science
File Size : 23.34 MB
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The aim of this book is to become a major reference text for gravitational-wave physics, covering in detail both the experimental and the theoretical aspects. The book brings the reader to the forefront of present-day research, and assumes no previous knowledge of gravitational-wave physics.
Category: Science

Gravitational Waves From Coalescing Binaries

Author : Stanislav Babak
ISBN : 9781681737010
Genre : Science
File Size : 57.34 MB
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This book is to help post-graduate students to get into gravitational wave astronomy. We assume the knowledge of General Relativity theory, though we will concentrate on the physics and often omit mathematically strict derivations. We provide references to already existing literature where possible, this helps us to see a broad picture, skipping the details. The uniqueness of this book is in that it covers three frequency bands and three major world-wide efforts to detect gravitational waves. The LIGO and Virgo scientific collaboration has detected first gravitational waves and the merger of black holes become now almost a routine. We do expect many discoveries yet to come, especially in the joined gravitational and electromagnetic observations. LISA, the space-based gravitational wave observatory, will be launched around 2034 and will be able to detect thousands of GW sources in the milli-Hz band. Pulsar timing array observations have accumulated 20-years' worth of data and we expected detection of GWs in the nano-Hz band within the next decade. We describe the gravitational wave sources and data analysis techniques in each frequency band.
Category: Science

Gravitational Wave Astrophysics

Author : Carlos F. Sopuerta
ISBN : 9783319104881
Genre : Science
File Size : 30.82 MB
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This book offers review chapters written by invited speakers of the 3rd Session of the Sant Cugat Forum on Astrophysics - Gravitational Waves Astrophysics. All chapters have been peer reviewed. The book goes beyond normal conference proceedings in that it provides a wide panorama of the astrophysics of gravitational waves and serves as a reference work for researchers in the field.
Category: Science

Workflows For E Science

Author : Ian J. Taylor
ISBN : 184628757X
Genre : Computers
File Size : 30.23 MB
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This is a timely book presenting an overview of the current state-of-the-art within established projects, presenting many different aspects of workflow from users to tool builders. It provides an overview of active research, from a number of different perspectives. It includes theoretical aspects of workflow and deals with workflow for e-Science as opposed to e-Commerce. The topics covered will be of interest to a wide range of practitioners.
Category: Computers

Bayesian Modelling Of Stellar Core Collapse Gravitational Wave Signals And Detector Noise

Author : Matthew Charles Edwards
ISBN : OCLC:1046659447
Genre : Bayesian statistical decision theory
File Size : 63.81 MB
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A new era of astronomy dawned on September 14, 2015, when the Advanced Laser Interferometer Gravitational-Wave Observatory (Advanced LIGO) detectors observed a gravitational wave signal from a binary black hole merger for the first time. This was followed by two more observations of gravitational waves from black hole binary mergers on December 26, 2015, and January 4, 2017. Bayesian data analysis played a key role in inferring the underlying astrophysics of these events. As more detectors come on-line and new discoveries are made, novel data analysis techniques will be critical to accurately model gravitational wave signals and background noise. Though stellar core collapse gravitational waves have not been observed yet, parameter estimation routines that can extract important astrophysical parameters encoded in these signals must be designed for their eventual detection. These methods will need to be different from those of binary black hole mergers as stellar core collapse signals are far more complex. A novel method for parameter estimation of stellar core collapse will be discussed here. The signal will first be reconstructed using principal component regression and implemented using Metropolis-within-Gibbs and reversible jump Markov chain Monte Carlo algorithms. Known astrophysical parameters will be fitted to Monte Carlo estimates of the principal component coefficients. Inferences of important physical quantities will then be made by sampling from the posterior predictive distribution and by applying classification and cross-validation methods. In addition to modelling stellar core collapse signals, the noise spectral density from the groundbased gravitational wave detectors, Advanced LIGO, will be modelled using the methods of Bayesian nonparametrics. Three different approaches will be presented: the Bernstein polynomial prior; a newly developed B-spline prior; and the recently developed nonparametric correction to a parametric likelihood. These methods will address the limitations of the default parametric noise model used in much of the gravitational wave data analysis literature and in practice.
Category: Bayesian statistical decision theory

Data Analysis In Astronomy Iii

Author : V. di Gesù
ISBN : 9781468456462
Genre : Science
File Size : 28.4 MB
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In the book are reported the main results presented at the Third International Workshop on Data Analysis in Astronomy, held at the EUore Majorana Center for Scientific Culture, Erice, Sicily, Italy, on June 20-27,1988. The Workshop was the natural evolution of the two previous ones. The main goal of the first edition (Erice 1984) was to start a scientific interaction between Astronomers and Computer Scientists. Aim of the second (Erice 1986) was to look at the progress in data analysis methods and dedicated hardware technology. Data analysis problems become harder whenever the data are poor in statistics or the signal is weak and embedded in structured background. Experiments collecting data of such a nature require new and non-standard methodologies. Possibilistic approaches could be merged with the statistical ones, in order to formalize all the knowledge used by the scientists to reach conclusions. Moreover, the last decade has been characterized by very fast developments of Intelligent Systems for data analysis (knowledge based systems, ... ) that would be useful to support astronomers in complex decision making. For these reasons, the last edition of the workshop was intended to provide an overview on the state of the art in the data analysis methodologies and tools in the new frontieres of the astrophysics (y-astronomy, neutrino astronomy, gravitational waves, background radiation and extreme cosmic ray energy spectrum). The book is organized in two sections: - Data analysis methods and tools, - New frontieres in astronomy.
Category: Science

High Energy Physics Index

Author :
ISBN : PSU:000052636219
Genre : Particles (Nuclear physics)
File Size : 77.35 MB
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Category: Particles (Nuclear physics)