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Title: Catching supermassive black hole binaries without a net

Abstract

The gravitational wave signals from coalescing Supermassive Black Hole Binaries are prime targets for the Laser Interferometer Space Antenna (LISA). With optimal data processing techniques, the LISA observatory should be able to detect black hole mergers anywhere in the Universe. The challenge is to find ways to dig the signals out of a combination of instrument noise and the large foreground from stellar mass binaries in our own galaxy. The standard procedure of matched filtering against a grid of templates can be computationally prohibitive, especially when the black holes are spinning or the mass ratio is large. Here we develop an alternative approach based on Metropolis-Hastings sampling and simulated annealing that is orders of magnitude cheaper than a grid search. For the first time, we show that it is possible to detect and characterize the signals from binary systems of Schwarzschild Black Holes that are embedded in instrument noise and a foreground containing millions of galactic binaries. Our technique is computationally efficient, robust, and applicable to both high and low signal-to-noise ratio systems.

Authors:
;  [1]
  1. Department of Physics, Montana State University, Bozeman, Montana 59717 (United States)
Publication Date:
OSTI Identifier:
20935193
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 75; Journal Issue: 2; Other Information: DOI: 10.1103/PhysRevD.75.021301; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ANNEALING; ANTENNAS; BLACK HOLES; DATA PROCESSING; GALAXIES; GRAVITATIONAL WAVES; INTERFEROMETERS; MASS; NOISE; SIGNAL-TO-NOISE RATIO; SIGNALS; UNIVERSE

Citation Formats

Cornish, Neil J., and Porter, Edward K.. Catching supermassive black hole binaries without a net. United States: N. p., 2007. Web. doi:10.1103/PHYSREVD.75.021301.
Cornish, Neil J., & Porter, Edward K.. Catching supermassive black hole binaries without a net. United States. doi:10.1103/PHYSREVD.75.021301.
Cornish, Neil J., and Porter, Edward K.. Mon . "Catching supermassive black hole binaries without a net". United States. doi:10.1103/PHYSREVD.75.021301.
@article{osti_20935193,
title = {Catching supermassive black hole binaries without a net},
author = {Cornish, Neil J. and Porter, Edward K.},
abstractNote = {The gravitational wave signals from coalescing Supermassive Black Hole Binaries are prime targets for the Laser Interferometer Space Antenna (LISA). With optimal data processing techniques, the LISA observatory should be able to detect black hole mergers anywhere in the Universe. The challenge is to find ways to dig the signals out of a combination of instrument noise and the large foreground from stellar mass binaries in our own galaxy. The standard procedure of matched filtering against a grid of templates can be computationally prohibitive, especially when the black holes are spinning or the mass ratio is large. Here we develop an alternative approach based on Metropolis-Hastings sampling and simulated annealing that is orders of magnitude cheaper than a grid search. For the first time, we show that it is possible to detect and characterize the signals from binary systems of Schwarzschild Black Holes that are embedded in instrument noise and a foreground containing millions of galactic binaries. Our technique is computationally efficient, robust, and applicable to both high and low signal-to-noise ratio systems.},
doi = {10.1103/PHYSREVD.75.021301},
journal = {Physical Review. D, Particles Fields},
number = 2,
volume = 75,
place = {United States},
year = {Mon Jan 15 00:00:00 EST 2007},
month = {Mon Jan 15 00:00:00 EST 2007}
}