PIRSA:C10015 - Theory Meets Data Analysis at Comparable and Extreme Mass Ratios - 2010PODCAST Subscribe to podcast

Theory Meets Data Analysis at Comparable and Extreme Mass Ratios


Collection URL: http://pirsa.org/C10015

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Understanding spinning black-hole binaries: a new effective-one-body model
Speaker(s): Enrico Barausse
Abstract: The dynamics of black-hole binaries is a very complex problem which has been solved only very recently through time-expensive numerical-relativity calculations. In spite of this mathematical complexity many results of these calculations can be accurately reproduced with phenomenological approaches b... read more
Date: 25/06/2010 - 4:50 pm

Analytical modeling of binary black-hole coalescence within the effective-one-body formalism.
Speaker(s): Yi Pan
Abstract: I will review recent advances in the effective-one-body formalism aimed at describing the dynamics and gravitational-wave emission from coalescing black holes. I will discuss the implications of those advances for the search of gravitational waves from binary black holes and for the recoil velocity ... read more
Date: 25/06/2010 - 5:10 pm

Hybrid waveforms for binary black holes with aligned spins: Matching errors and a phenomenological model in the frequency domain
Speaker(s): Frank Ohme
Abstract: We present a new construction of phenomenological templates for non-precessing spinning black hole binaries. This approach utilizes a frequency domain matching of post-Newtonian inspiral waveforms with numerical relativity based binary black hole coalescence waveforms. We quantify the various possib... read more
Date: 25/06/2010 - 5:30 pm

Gravitational Wave Detection: Past, Present and Future
Speaker(s): Sam Waldman
Abstract: Direct detection of gravitational wave stands at a cross roads; the first generation of interferometric detectors will soon be decommissioned and the second generation projects are underway. In this talk, I will describe the Initial LIGO and VIRGO generation of instruments, the techniques required t... read more
Date: 26/06/2010 - 9:00 am

Bayesian Inference on Numerical Injections
Speaker(s): Ilya Mandel
Abstract: We describe a Markov-Chain Monte-Carlo technique to study the source parameters of gravitational-wave signals from the inspirals of stellar-mass compact binaries detected with ground-based detectors such as LIGO and Virgo. We can apply this technique to both spinning and non-spinning waveforms and w... read more
Date: 26/06/2010 - 10:30 am

General Relativistic Simulations of Binary Neutron Star Mergers
Speaker(s): Bruno Giacomazzo
Abstract: I will report on some recent results obtained using the fully general relativistic magnetohydrodynamic code Whisky in simulating equal and unequal-mass binary neutron star (BNS) systems during the last phases of inspiral, merger and collapse to black hole surrounded by a torus. BNSs are among the mo... read more
Date: 26/06/2010 - 10:50 am

Binary black hole collision in a force-free environment
Speaker(s): Carlos Palenzuela
Abstract: In this work we investigate the electromagnetic radiation induced by a binary black hole merger when they are surrounded by a force-free environment (i.e. plasma with inertia terms negligible compared to the electromagnetic stresses). We discuss the relevance of this system for possible multimesseng... read more
Date: 26/06/2010 - 11:10 am

Gravitational Waves from Core-Collapse Supernovae
Speaker(s): Christian Ott
Abstract: We present a short overview on the current state of core-collapse supernova modeling and the set of processes expected to emit gravitational waves in a core collapse event. We go on to show new results from 3D GR simulations focusing on failing black-hole forming supernovae and present the gravitati... read more
Date: 26/06/2010 - 11:30 am

Nonlinear memory in numerical waveforms
Speaker(s): Denis Pollney
Abstract: In addition to the dominant oscillatory modes gravitational waves contain non-oscillatory components which arise as drifts or offsets in the signals. Nonlinear gravitational memory arises from a change in mass multipole moments of a boundsystem due to contributions from the emitted gravitationalwave... read more
Date: 26/06/2010 - 11:50 am

The Hairstyles of Compact Objects
Speaker(s): Avery Broderick
Abstract: While gravitational waves offer a new, and in many ways clean, view of compact objects, most of what we presently know about these has been obtained by careful study of their messy interactions with surrounding material. I will summarize what we know about a variety of potential gravitational wave s... read more
Date: 26/06/2010 - 1:30 pm

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