Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 46 for “"gravitational radiation"”.
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Issues in the detection of gravitational radiation
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Physics, 1992
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Gravitational Radiation from Superradiant Instabilities of Rotating Black Holes
We use the Teukolsky formalism to calculate the gravitational radiation from a non-axi\-symmetric cloud formed due to superradiant amplification of a spin-0 bosonic field. We focus on the prospects of the future space-based gravitational wave detector, Laser Interferometer Space Antenna (LISA), and …
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Upper limits for gravitational radiation from some astrophysical sources
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1987.
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On measuring the stochastic gravitational radiation background with laser interferometric antennas
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1990.
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Mathematical Studies on the Asymptotic Behaviour of Gravitational Radiation in General Relativity
… of how to model the asymptotic behaviour of gravitational radiation in astrophysical processes within the theory of general relativity. It is argued that the correct mathematical setup to address this question is the *scattering problem* (as opposed to the Cauchy problem), where data are …
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A search for astronomical gravitational radiation with an interferometric broad band antenna
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1986.
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Upper limits for galactic transient sources of gravitational radiation from LIGO first observations
… prototype analysis system for the observation of gravitational wave bursts with a network of interferometric detectors is designed and tested. This system detects localized transients in the gravitational wave data streams from two independent detectors using a time-frequency algorithm, applies …
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Numerical Modelling of the Dynamics and Gravitational Radiation of Compact Binaries in General Relativity
… the modern description of gravity. GR poses that gravitational physics should be described by matter fields existing in a curved space described by differential geometry. The Newtonian gravitational force is viewed as a fictitious force arising from curvature; on the flipside, matter and energy …
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Gravitational radiation detectability of supernova 1987A's remnant fully matched filter for double resonant gravitational detector
… is believed to spin down due to the emission of gravitational waves. We give a precise calculation of the strain value of the gravitational waves reaching earth and discuss the possibility of detection of this radiation by existing and soon on line gravitational waves detectors. Our conclusion is …
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Computing and analyzing gravitational radiation in black hole simulations using a new multi-block approach to numerical relativity
… in detail. Issues concerning the extraction of gravitational waves from numerical space-times and analyzing them in a systematic way are discussed. A new multi-block infrastructure for solving first order symmetric hyperbolic time dependent partial differential equations is developed and …
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Analysis of spatial mode sensitivity of gravitational wave interferometer and targeted search for gravitational radiation from the Crab pulsar
… the last several years the Laser Interferometer Gravitational Wave Observatory (LIGO) has been making steady progress in improving the sensitivities of its three interferometers, two in Hanford, Washington, and one in Livingston, Louisiana. These interferometers have reached their target design …
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Quantum limited optical phase detection in a high power suspended interferometer
The LIGO project (Laser Interferometer Gravitational-Wave Observatory) is currently engaged in the construction of a new observatory to measure gravitational radiation from astrophysical sources. The first generation of interferometric gravitational wave antennas is scheduled to come on-line in …
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Properties of expanding universes
… small. The propagation and absorption of gravitational radiation is also investigated in this approximation. In Chapter 3 gravitational radiation in an expanding universe is examined by a method of asymptotic expansions. The 'peeling off' behaviour and the asymptotic group are derived. …
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Towards detecting gravitational waves from the Crab Pulsar
… impact the ability of the Laser Interferometer Gravitational-Wave Observatory (LIGO) to directly detect gravitational radiation. Noteworthy examples include Newtonian gravity gradient, seismic, acoustic, thermal and photon shot noise. These are the obstacles that must be confronted by the …
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Gravity wave signals from relativistic calculations of binary neutron star coalescence
… particle hydrodynamics code used to study the gravitational wave signature produced by coalescing neutron star binary systems. Additionally, we have studied the properties of remnants which may be formed during the merger process. We have introduced a hybrid post-Newtonian formalism, which …
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Rotating black hole spacetimes
… including apparent horizons, event horizons and gravitational radiation, is presented. These initial data sets represent distorted rotating black holes, and two types of non-rotating black holes with odd-parity radiation distortions. The first has the equatorial plane symmetry of the Kerr …
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Gravitational Waves and Inspiraling Compact Binaries in Alternative Theories of Gravity
… of gravity, performed experimental tests, and gravitational waves. The framework and the methods that we use in our calculations are discussed in Part II. This part includes reviewing the methods of the Parametrized Post-Newtonian: PPN) framework, Direct Integration of Relaxed Einstein …
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Detectability of dynamical tidal effects and the detection of gravitational-wave transients with LIGO
… and compact stellar remnants inspiraling due to gravitational radiation. In addition, it discusses general aspects of detecting Gravitational Waves with ground-based laser interferometers. Data quality and noise reduction along with source parameter estimation, with particular emphasis on …
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Gravitational waves as direct probes of binary evolution and astrophysical environments
The field of gravitational-wave astronomy began with the detection of a merging heavy stellar-mass black-hole binary. Many such compact binaries have been detected since then and more massive black-hole mergers are expected to be detected as the rest of the gravitational-wave spectrum is opened up …
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Gravitational waves from a string cusp in Einstein-aether theory
… Lorentz violation, hopefully observable, in the gravitational waves emitted by cosmic strings. Aspects of cosmic strings are reviewed, in particular how focused bursts of gravitational radiation are emitted when a cusp forms on the string. The same phenomenon is then studied in an effective field …
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