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  Extracting Information about EMRIs using Time-Frequency

Wen, L., Chen, Y., & Gair, J. R. (2006). Extracting Information about EMRIs using Time-Frequency. In S. M. Merkowitz, & J. C. Livas (Eds.), Laser Interferometer Space Antenna (pp. 595-605). Berlin u.a.: Springer.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-4CA2-E Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-4CA4-A
Genre: Conference Paper

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 Creators:
Wen, Linqing1, Author
Chen, Yanbei2, Author              
Gair, Jonathan R., Author
Affiliations:
1Theoretical Gravitational Wave Physics, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24015              
2Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24013              

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 Abstract: 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.

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 Dates: 2006
 Publication Status: Published in print
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 Identifiers: eDoc: 317004
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Title: 6th International LISA Symposium
Place of Event: Greenbelt, Maryland
Start-/End Date: 2006-06-19 - 2006-06-23

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Title: Laser Interferometer Space Antenna
Source Genre: Proceedings
 Creator(s):
Merkowitz, Stephen M., Editor
Livas, Jeffrey C., Editor
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Publ. Info: Berlin u.a. : Springer
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 595 - 605 Identifier: -

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Title: AIP Conference Proceedings
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Pages: - Volume / Issue: 873 Sequence Number: - Start / End Page: - Identifier: -