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LISA and binary systems

LISA and binary systems. LISA will “see” every binary system in the Galaxy that has a period < 2 hr, but at periods > 0.5 hr only nearby systems can be resolved.

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LISA and binary systems

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  1. LISA and binary systems • LISA will “see” every binary system in the Galaxy that has a period < 2 hr, but at periods > 0.5 hr only nearby systems can be resolved. • Known binaries must be seen, and their detection will verify that LISA is operating correctly. (LISA is self-calibrating, so there are no free instrumental parameters in fitting their signals.) • First binaries strong enough to see in first weeks. Could LISA detect GWs before the ground-based projects do?? • Synergy between LISA and GAIA: • LISA polarisation measurement determines inclination of orbital plane • LISA will give accurate distances to and masses of WD/WD binaries whose orbits show effects of gravitational radiation reaction, helping to calibrate distances to all white dwarfs.

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