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          Institute: MPI für Gravitationsphysik     Collection: Laser Interferometry & Gravitational Wave Astronomy     Display Documents



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ID: 399771.0, MPI für Gravitationsphysik / Laser Interferometry & Gravitational Wave Astronomy
Improved time–frequency analysis of extreme-mass-ratio inspiral signals in mock LISA data
Authors:Gair, Jonathan R.; Mandel, Ilya; Wen, Linqing
Date of Publication (YYYY-MM-DD):2008-09-02
Title of Journal:Classical and Quantum Gravity
Volume (in Journal):25
Issue / Number:18
Sequence Number:184031
Name of Conference/Meeting:12th Annual Gravitational Wave Data Analysis Workshop (GWDAW 2007)
Place of Conference/Meeting:Cambridge, Massachusetts
(Start) Date of Conference/Meeting
 (YYYY-MM-DD):
2007-12-13
End Date of Conference/Meeting 
 (YYYY-MM-DD):
2007-12-16
Review Status:Peer-review
Audience:Not Specified
Abstract / Description:The planned Laser Interferometer Space Antenna (LISA) is expected to detect gravitational wave signals from ~100 extreme-mass-ratio inspirals (EMRIs) of stellar-mass compact objects into massive black holes. The long duration and large parameter space of EMRI signals make data analysis for these signals a challenging problem. One approach to EMRI data analysis is to use time–frequency methods. This consists of two steps: (i) searching for tracks from EMRI sources in a time–frequency spectrogram and (ii) extracting parameter estimates from the tracks. In this paper we discuss the results of applying these techniques to the latest round of the Mock LISA Data Challenge, Round 1B. This analysis included three new techniques not used in previous analyses: (i) a new chirp-based algorithm for track search for track detection; (ii) estimation of the inclination of the source to the line of sight; (iii) a Metropolis–Hastings Monte Carlo over the parameter space in order to find the best fit to the tracks.
External Publication Status:published
Document Type:Conference-Paper
Communicated by:Karsten Danzmann
Affiliations:MPI für Gravitationsphysik/Laser Interferometry & Gravitational Wave Astronomy
MPI für Gravitationsphysik/Teilinstitut Hannover
Identifiers:ISSN:0264-9381
DOI:10.1088/0264-9381/25/18/184031
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