ar X iv : 0 70 7 . 01 28 v 1 [ gr - q c ] 1 J ul 2 00 7 F - statistic search for white - dwarf binaries in the first Mock LISA Data Challenge
نویسنده
چکیده
The F-statistic is an optimal detection statistic for continuous gravitational waves, i.e., long-duration (quasi-)monochromatic signals with slowly-varying intrinsic frequency. This method was originally developed in the context of ground-based detectors, but it is equally applicable to LISA where many signals fall into this class of signals. We report on the application of a LIGO/GEO F-statistic code to LISA data-analysis using the long-wavelength limit (LWL), and we present results of our search for white-dwarf binary signals in the first Mock LISA Data Challenge. Somewhat surprisingly, the LWL is found to be sufficient – even at high frequencies – for detection of signals and their accurate localization on the sky and in frequency, while a more accurate modelling of the TDI response only seems necessary to correctly estimate the four amplitude parameters. E-mail: [email protected], [email protected]
منابع مشابه
Mock LISA Data Challenge 2 : F - statistic Search for white - dwarf binaries
We use the F -statistic, a coherent matched-filtering detection statistic first introduced by Jaranowski et al. [6] in the context of the search for continuouswave signals in ground based detectors. This method has been implemented by the LIGO Scientific collaboration in LAL/LALApps [8], and is currently used in the search for quasi-periodic GW signals from spinning neutron stars (e.g. see [1])...
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We report on our F-statistic search for white-dwarf binary signals in the Mock LISA Data Challenge 1B (MLDC1B) . We focus in particular on the improvements in our search pipeline since MLDC1, namely refinements in the search pipeline and the use of a more accurate detector response (rigid adiabatic approximation). The search method employs a hierarchical template-grid based exploration of the p...
متن کاملar X iv : g r - qc / 0 70 11 70 v 3 1 8 M ay 2 00 7 An overview of the second round of the Mock LISA Data Challenges
The Mock Data Challenges (MLDCs) have the dual purpose of fostering the development of LISA data-analysis tools and capabilities and of demonstrating the technical readiness already achieved by the gravitational-wave community in distilling a rich science payoff from the LISA data. The first round of MLDCs has just been completed and the second-round data sets are being released shortly after t...
متن کاملar X iv : g r - qc / 0 70 11 70 v 4 1 6 N ov 2 00 7 An overview of the second round of the Mock LISA Data Challenges
The Mock Data Challenges (MLDCs) have the dual purpose of fostering the development of LISA data-analysis tools and capabilities and of demonstrating the technical readiness already achieved by the gravitational-wave community in distilling a rich science payoff from the LISA data. The first round of MLDCs has just been completed and the second-round data sets are being released shortly after t...
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