LIGO Document G0900534-v2

Monitoring Sco X-1 with the RXTE and gravitational wave detectors

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We present a multi-messenger observation plan for Sco X-1, the brightest Low Mass X-ray Binaries (LMXBs), using the Rossi X-ray Timing Explorer (RXTE) and the current network of gravitational wave detectors.
Sco X-1 was the first extra-solar X-ray source to be discovered and there are still many unanswered questions: What is the spin frequency? What mechanism is at work during low and high frequency quasi-periodic oscillations (QPOs)? What is the limiting mechanism on the increase in spin frequency due to the accretion torque? Some of these issues may be related to gravitational radiation. Targeting burst-like gravitational waves, we propose to analyze both RXTE and gravitational wave time-series data using search pipelines developed for gravitational wave burst detection. In this presentation, we discuss our analysis plans and possible scientific results.
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