Computational cost for detecting inspiralling binaries using a network of laser interferometric detectors

Pai, Archana ; Bose, Sukanta ; Dhurandhar, Sanjeev (2002) Computational cost for detecting inspiralling binaries using a network of laser interferometric detectors Classical and Quantum Gravity, 19 (7). pp. 1477-1484. ISSN 0264-9381

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Official URL: http://iopscience.iop.org/0264-9381/19/7/333

Related URL: http://dx.doi.org/10.1088/0264-9381/19/7/333

Abstract

We extend a coherent network data-analysis strategy developed earlier for detecting Newtonian waveforms to the case of post-Newtonian (PN) waveforms. Since the PN waveform depends on the individual masses of the inspiralling binary, the parameter-space dimension increases by one from that of the Newtonian case. We obtain the number of templates and estimate the computational costs for PN waveforms: for a lower mass limit of 1M⊙ for LIGO-I noise and with 3% maximum mismatch, the online computational speed requirement for single detector is a few Gflops; for a two-detector network it is hundreds of Gflops and for a three-detector network it is tens of Tflops. Apart from idealistic networks, we obtain results for realistic networks comprising of LIGO and VIRGO. Finally, we compare costs incurred in a coincidence detection strategy with those incurred in the coherent strategy detailed above.

Item Type:Article
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ID Code:87738
Deposited On:21 Mar 2012 09:57
Last Modified:21 Mar 2012 09:57

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