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A Search For Pulsed Gravitational Waves Associated With Gamma Ray Bursts Using Ligo
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Book Synopsis A Search for Pulsed Gravitational Waves Associated with Gamma-ray Bursts Using LIGO by : Rauha John Rahkola
Download or read book A Search for Pulsed Gravitational Waves Associated with Gamma-ray Bursts Using LIGO written by Rauha John Rahkola and published by . This book was released on 2006 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Search for Gravitational Waves Associated with the Gamma Ray Burst GRB030329 Using the LIGO Detectors by :
Download or read book A Search for Gravitational Waves Associated with the Gamma Ray Burst GRB030329 Using the LIGO Detectors written by and published by . This book was released on 2005 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Searching for Gravitational Waves Associated with Gamma-ray Bursts Int 2009-2010 Ligo-virgo Data by : Michal Was
Download or read book Searching for Gravitational Waves Associated with Gamma-ray Bursts Int 2009-2010 Ligo-virgo Data written by Michal Was and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis we present the results of the search for gravitational wave bursts associated with gamma-ray bursts in the 2009-2010 data from the LIGOVirgo gravitational wave interferometer network. The study of gamma-ray bursts progenitors, both from the gamma-ray emission and the gravitational wave emission point of view, yields the characteristic of the sought signal: polarization, time delays, etc ... This knowledge allows the construction of a data analysis method which includes the astrophysical priors on joint gravitational wave and gamma-ray emission, and moreover which is robust to non-stationary transient noises, which are present in the data. The lack of detection in the analyzed data yields novel observational limits on the gamma-ray burst population.
Book Synopsis Gravitational Wave Astrophysics by : Daniel Hoak
Download or read book Gravitational Wave Astrophysics written by Daniel Hoak and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In the coming years, the second generation of interferometric gravitational wave detectors are widely expected to observe the gravitational radiation emitted by compact, energetic events in the nearby universe. The field of gravitational wave astrophysics has grown into a large international endeavor with a global network of kilometer-scale observatories. The work presented in this thesis spans the field, from optical metrology, to instrument commissioning, to detector characterization and data analysis. The principal results are a method for the precise characterization of optical cavities, the commissioning of the advanced LIGO Output Mode Cleaner at the Hanford observatory, and a search for gravitational waves associated with gamma-ray bursts.
Book Synopsis Gravitational Waves: A New Window to the Universe by : Rosalba Perna
Download or read book Gravitational Waves: A New Window to the Universe written by Rosalba Perna and published by Frontiers Media SA. This book was released on 2021-07-02 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Physics of Gravitational Waves by : Arun Kenath
Download or read book Physics of Gravitational Waves written by Arun Kenath and published by Springer Nature. This book was released on 2023-05-01 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis The Physics of Gamma-Ray Bursts by : Bing Zhang
Download or read book The Physics of Gamma-Ray Bursts written by Bing Zhang and published by Cambridge University Press. This book was released on 2019 with total page 617 pages. Available in PDF, EPUB and Kindle. Book excerpt: A complete text on the physics of gamma-ray bursts, the most brilliant explosions since the Big Bang.
Book Synopsis Gravitational Waves and Short Gamma Ray Bursts by : Valeriu Predoi
Download or read book Gravitational Waves and Short Gamma Ray Bursts written by Valeriu Predoi and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Short hard gamma-ray bursts (GRB) are believed to be produced by compact binary coalescences (CBC) { either double neutron stars or neutron star{black hole binaries. The same source is expected to emit strong gravitational radiation, detectable with existing and planned gravitational wave observatories. The focus of this work is to describe a series of searches for gravitational waves (GW) from compact binary coalescence (CBC) events triggered by short gamma-ray burst detections. Specifically, we will present the motivation, frameworks, implementations and results of searches for GW associated with short gamma-ray bursts detected by Swift, Fermi{GBM and the InterPlanetary Network (IPN) gamma-ray detectors. We will begin by presenting the main concepts that lay the foundation of gravitational waves emission, as they are formulated in the theory of General Relativity; we will also brie y describe the operational principles of GW detectors, together with explaining the main challenges that the GW detection process is faced with. Further, we will motivate the use of observations in the electromagnetic (EM) band as triggers for GW searches, with an emphasis on possible EM signals from CBC events. We will briefly present the data analysis techniques including concepts as matched{filtering through a collection of theoretical GW waveforms, signal{to{ noise ratio, coincident and coherent analysis approaches, signal{based veto tests and detection candidates' ranking. We will use two different GW{GRB search examples to illustrate the use of the existing coincident and coherent analysis methods. We will also present a series of techniques meant to improve the sensitivity of existing GW triggered searches. These include shifting background data in time in order to obtain extended coincident data and setting a prior on the GRB inclination angle, in accordance with astrophysical observations, in order to restrict the searched parameter space. We will describe the GW data analysis and present results from a GW search around 12 short gamma-ray bursts detected by the InterPlanetary Network (IPN) between 2006 and 2007. The IPN{detected bursts usually have extended localization error boxes and a search for GW was performed at different sky locations across these error regions. Since no GW detection was made, we set upper limits on the distances to the GRB progenitors; we briefly discuss the implications that two IPN GRBs error regions overlap two nearby galaxies.
Book Synopsis Improving the Detectability of Gravitational Wave Counterparts of Short-hard Gamma Ray Bursts by : Shaon Ghosh
Download or read book Improving the Detectability of Gravitational Wave Counterparts of Short-hard Gamma Ray Bursts written by Shaon Ghosh and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: With multiple observatories and missions being planned for detecting orphaned afterglows associated with gamma-ray bursts (GRBs) we emphasize the importance of developing data analysis strategies for searching their possible counterpart signals in the data of gravitational wave detectors in the advanced detector era. This is especially attractive since short hard gamma-ray bursts (SGRBs) may have compact binary coalescences involving neutron stars (CBCNS) as their progenitors, which emit gravitational waves. Joint electromagnetic and gravitational wave observations of these objects will enrich our understanding of their beaming, energetics, galactic environment, and shed light on a host of other outstanding questions related to them. We recognize some of the astrophysical factors that determine what fraction of these sources can generate orphaned afterglows. We developed a search pipeline by modifying the existing blind hierarchical coherent search pipeline, targeting their sky-position and time of occurrence known from EM observations to enable it to search for counterparts of SGRB and SGRB afterglows in gravitational wave detector data. The modifications allows it to analyze extended periods of time in the gravitational wave data in the past of the afterglow detection epoch, while targeting its known sky-position, to search for gravitational waves from the common progenitor. We assess the improvement in gravitational wave detectability to be had from utilizing the sky-position information. We also propose a method for mitigating the effects on the detection efficiency of targeted searches of gravitational wave signals from the putative CBCNS sources of afterglows and short gamma-ray bursts arising from the presence of errors in detector calibration or CBCNS waveform models used in the search.
Book Synopsis What Are Gamma-Ray Bursts? by : Joshua S. Bloom
Download or read book What Are Gamma-Ray Bursts? written by Joshua S. Bloom and published by Princeton University Press. This book was released on 2011-01-10 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: A brief, cutting-edge introduction to the brightest cosmic phenomena known to science Gamma-ray bursts are the brightest—and, until recently, among the least understood—cosmic events in the universe. Discovered by chance during the cold war, these evanescent high-energy explosions confounded astronomers for decades. But a rapid series of startling breakthroughs beginning in 1997 revealed that the majority of gamma-ray bursts are caused by the explosions of young and massive stars in the vast star-forming cauldrons of distant galaxies. New findings also point to very different origins for some events, serving to complicate but enrich our understanding of the exotic and violent universe. What Are Gamma-Ray Bursts? is a succinct introduction to this fast-growing subject, written by an astrophysicist who is at the forefront of today's research into these incredible cosmic phenomena. Joshua Bloom gives readers a concise and accessible overview of gamma-ray bursts and the theoretical framework that physicists have developed to make sense of complex observations across the electromagnetic spectrum. He traces the history of remarkable discoveries that led to our current understanding of gamma-ray bursts, and reveals the decisive role these phenomena could play in the grand pursuits of twenty-first century astrophysics, from studying gravity waves and unveiling the growth of stars and galaxies after the big bang to surmising the ultimate fate of the universe itself. What Are Gamma-Ray Bursts? is an essential primer to this exciting frontier of scientific inquiry, and a must-read for anyone seeking to keep pace with cutting-edge developments in physics today.
Book Synopsis Search for Gravitational Waves Associated with Γ-ray Bursts Detected by the Interplanetary Network by :
Download or read book Search for Gravitational Waves Associated with Γ-ray Bursts Detected by the Interplanetary Network written by and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Gravitational Waves and Cosmology by : E. Coccia
Download or read book Gravitational Waves and Cosmology written by E. Coccia and published by IOS Press. This book was released on 2020-08-31 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: The past twenty years have seen a number of breakthroughs in astrophysics and cosmology, some of which have been awarded Nobel prizes. These physics triumphs highlight the fact that while students need a solid grounding in the fundamentals of astrophysics and cosmology, sight of the basics of the fundamental interactions in physics must not be lost. This book presents papers based on lectures given at the 200th Course of the International School of Physics “Enrico Fermi”, on Gravitation and Cosmology, held in Varenna, Italy, from 3 - 12 July 2017. The aim of the school was to expose students to state-of-the-art research in the field of gravitational waves and cosmology, from both a theoretical and experimental point of view. Lectures were organized in such a way as to foster interaction between the two communities, and a wide range of topics was addressed. In the gravitational waves section, topics covered include experimental issues connected with gravitational wave detection and the new field of multi-messenger astronomy, as well as more astrophysical aspects. In the section on cosmology, there are contributions on the early universe, on the cosmic microwave background (CMB) and on redshift surveys. Other areas covered include a review of inflationary scenarios; the non-Gaussian features of primordial density fluctuations; and the physical mechanisms responsible for the spectral distortions of the blackbody spectrum of the CMB. The book provides an overview of important research developments and will be of interest to all students of gravitation and cosmology.
Book Synopsis Improved Methods for the Detection of Gravitational Waves Associated with Gamma-ray Bursts by : Iain Dorrington
Download or read book Improved Methods for the Detection of Gravitational Waves Associated with Gamma-ray Bursts written by Iain Dorrington and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Search for Long-Duration Transient Gravitational Waves Associated with Magnetar Bursts during LIGO's Sixth Science Run by : Ryan Quitzow-James
Download or read book Search for Long-Duration Transient Gravitational Waves Associated with Magnetar Bursts during LIGO's Sixth Science Run written by Ryan Quitzow-James and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 2021-11-23 with total page 172 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.
Book Synopsis Understanding Gravitational Waves by : C. R. Kitchin
Download or read book Understanding Gravitational Waves written by C. R. Kitchin and published by Springer Nature. This book was released on 2021-09-23 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: The birth of a completely new branch of observational astronomy is a rare and exciting occurrence. For a long time, our theories about gravitational waves—proposed by Albert Einstein and others more than a hundred years ago—could never be fully proven, since we lacked the proper technology to do it. That all changed when, on September 14, 2015, instruments at the LIGO Observatory detected gravitational waves for the first time. This book explores the nature of gravitational waves—what they are, where they come from, why they are so significant and why nobody could prove they existed before now. Written in plain language and interspersed with additional explanatory tutorials, it will appeal to lay readers, science enthusiasts, physical science students, amateur astronomers and to professional scientists and astronomers.
Book Synopsis Gravitational Waves by : Hartmut Grote
Download or read book Gravitational Waves written by Hartmut Grote and published by CRC Press. This book was released on 2019-12-23 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: The historic detection of gravitational waves on September 14, 2015, prompted by the highly energetic fusion of two black holes, has made events in the universe "audible" for the first time. This expansion of the scientific sensorium has opened a new chapter in astronomy and already led to, among others, fascinating new insights about the abundance of black holes, the collision of neutron stars, and the origin of heavy chemical elements. The history of this event, which is epochal for physics, is reconstructed in this book, along with a walk-through of the main principles of how the detectors operate and a discussion of how the search for gravitational waves is conducted. The book concludes with an update of the latest detections and developments to date and a brief look into the future of this exciting research field. This book is accessible to non-specialist readers from a general audience and is also an excellent introduction to the topic for undergraduates in physics. Features: Provides an introduction to the historic discovery of gravitational waves Explains the inner workings of the detectors and the search to find the waves hidden in the data Authored by a renowned specialist involved in the ground-breaking discovery Hartmut Grote is a Professor of physics at Cardiff University, UK. His main expertise is in experimental gravitational-wave physics, and he has worked on building and improving gravitational wave detectors for over 20 years. From 2009 to 2017, he was the scientific leader of the British-German gravitational-wave detector: GEO600.
