Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21322502v&link_type=abstract
American Astronomical Society, AAS Meeting #213, #225.02; Bulletin of the American Astronomical Society, Vol. 41, p.473
Astronomy and Astrophysics
Astrophysics
Scientific paper
Space-based gravitational-wave detectors such as the planned NASA--ESA mission LISA target the low-frequency band between 0.1 mHz and 1 Hz. This band is populated by thousands of detectable astrophysical sources, which will enable many exciting investigations: exploring hierarchical galaxy formation scenarios, sampling the strong-field regime of general-relativistic dynamics, taking a census of Galactic compact binaries, characterizing the nature of the massive objects at galactic centers, and much more. The very abundance of signals in this band raises the "cocktail party" problem of resolving thousands of gravitational-wave sources that are present simultaneously in the LISA data. We know from theory that such a resolution is possible thanks to the orthogonality of sources in signal space; and the "Mock LISA Data Challenge" program has recently demonstrated of the extraction of many thousand signals in simulated LISA signals.
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