MG14 - Talk detail

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Abstract

The Advanced LIGO detectors are scheduled start acquiring data in 2015 with Advanced Virgo following in 2016. They will approach their target sensitivities over the subsequent years. A major goal for LIGO and Virgo will be to detect or set limits on a stochastic background of gravitational waves. A stochastic background of gravitational waves is expected to arise from a superposition of a large number of unresolved cosmological and/or astrophysical sources. A cosmologically produced background would carry unique signatures from the earliest epochs in the evolution of the Universe. Similarly, an astrophysical background would provide information about the astrophysical sources that generated it. Advanced LIGO and Advanced Virgo observations should be able to probe interesting regions of parameter space for these models. We will outline LIGO and Virgo's search strategies for these signals. We will also discuss how global electromagnetic noise (Schumann resonances) will affect this search, and possible strategies to monitor and subtract this potential source of correlated noise in a the global detector network.

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