Searching for gravitational waves emitted by binaries with spinning components

Abstract

In this thesis we consider the data analysis problem of detecting gravitational waves emitted by inspiraling binary systems. Detection of gravitational waves will open a new window on the Universe enabling direct detection of systems such as binary black holes for the first time. In the first Chapter we show how gravitational waves are derived from Einstein's General theory of Relativity and discuss the emission of gravitational waves from inspiraling binaries and how this radiation may be detected using laser interferometers. Around two thirds of stars inhabit binary systems. As they orbit each other they will emit both energy and angular momentum in the form of gravitational waves which will inevitably lead to their inspiral and eventual merger. To date, searches for gravitational waves emitted during the inspiral of binary systems have concentrated on systems with non-spinning components. In Chapter 2 we detail the first dedicated search for binaries consisting of spinning stellar mass compact objects. We analysed 788 hours of data collected during the third science run (S3) of the LIGO detectors, no detection of gravitational waves was made and we set an upper limit on the rate of coalescences of stellar mass binaries. The inspiral of stellar mass compact objects into super massive black holes will radiate gravitational waves at frequencies detectable by the planned space-based LISA mission. In Chapter 3 we describe the development and testing of a computationally cheap method to detect the loudest few extreme mass ratio inspiral events that LISA will be sensitive to.

PhD Thesis, successfully defended in January 2008, 230 pages, 46 figures

References in corpus (14)

• Intermediate and Extreme Mass-Ratio Inspirals -- Astrophysics, Science Applications and Detection using LISA
• Host Galaxies Catalog Used in LIGO Searches for Compact Binary Coalescence Events
• Formation of Double Compact Objects
• Search for gravitational waves from binary inspirals in S3 and S4 LIGO data
• Phenomenology of amplitude-corrected post-Newtonian gravitational waveforms for compact binary inspiral. I. Signal-to-noise ratios
• Relativistic Binary Pulsar B1913+16: Thirty Years of Observations and Analysis
• The Loudest Event Statistic: General Formulation, Properties and Applications
• Search of S3 LIGO data for gravitational wave signals from spinning black hole and neutron star binary inspirals
• Catching Super Massive Black Hole Binaries Without a Net
• Interpreting the results of searches for gravitational waves from coalescing binaries
• Detecting extreme mass ratio inspiral events in LISA data using the Hierarchical Algorithm for Clusters and Ridges (HACR)
• Time-frequency analysis of extreme-mass-ratio inspiral signals in mock LISA data
• Automatic Bayesian inference for LISA data analysis strategies
• Effect of PSR J0737-3039 on the DNS Merger Rate and Implications for GW Detection