Cosmography with strong lensing of LISA gravitational wave sources

Understand

LISA might detect gravitational waves from mergers of massive black hole binaries strongly lensed by intervening galaxies (Sereno et al.

• 2010).
• The detection of multiple gravitational lensing events would provide a new tool for cosmography.
• Constraints on cosmological parameters could be placed by exploiting either lensing statistics of strongly lensed sources or time delay measurements of lensed gravitational wave signals.