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          Institute: MPI für Gravitationsphysik     Collection: Theoretical Gravitational Wave Physics     Display Documents



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ID: 317004.0, MPI für Gravitationsphysik / Theoretical Gravitational Wave Physics
Extracting Information about EMRIs using Time-Frequency
Authors:Wen, Linqing; Chen, Yanbei; Gair, Jonathan R.
Publisher:Springer
Place of Publication:Berlin u.a.
Date of Publication (YYYY-MM-DD):2006
Title of Proceedings:Laser Interferometer Space Antenna
Start Page:595
End Page:605
Title of Series:AIP Conference Proceedings
Volume (in Series):873
Name of Conference/Meeting:6th International LISA Symposium
Place of Conference/Meeting:Greenbelt, Maryland
(Start) Date of Conference/Meeting
 (YYYY-MM-DD):
2006-06-19
End Date of Conference/Meeting 
 (YYYY-MM-DD):
2006-06-23
Review Status:not specified
Audience:Not Specified
Abstract / Description:The inspirals of stellar-mass compact objects into supermassive black holes are some of the most exciting sources of gravitational waves for LISA. Detection of these sources using fully coherent matched filtering is computationally intractable, so alternative approaches are required. In Wen & Gair (2005), we proposed a detection method based on searching for significant deviation of power density from noise in a time-frequency spectrogram of the LISA data. The performance of the algorithm was assessed in Gair & Wen (2005) using Monte-Carlo simulations on several trial waveforms and approximations to the noise statistics. We found that typical extreme mass ratio inspirals (EMRIs) could be detected at distances of up to 1-3 Gpc, depending on the source parameters. In this paper, we first give an overview of our previous work in Wen & Gair (2005) and Gair & Wen (2005), and discuss the performance of the method in a broad sense. We then introduce a decomposition method for LISA data that decodes LISA's directional sensitivity. This decomposition method could be used to improve the detection efficiency, to extract the source waveform, and to help solve the source confusion problem. Our approach to constraining EMRI parameters using the output from the time-frequency method will be outlined.
External Publication Status:published
Document Type:Conference-Paper
Communicated by:Yanbei Chen
Affiliations:MPI für Gravitationsphysik/Theoretical Gravitational Wave Physics
External Affiliations:Laser Interferometer Space Antenna
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