Gravtitational Wave Spectrum

The spectrum shows the sensitivity that LISA will obtain in its
operating band, as well as spectral regions where various sources
are predicted to be.  The sensitivity below 3 mHz is dominated by
spurious accelerations of the reference proof masses.  The sensitivity 
from 3 mHz to 1 Hz reflects the shot noise limited performance of the
interferometer.  The sensitivity above 10mHz has a complex behavior
caused by the interferometer arm length being greater than the wavelength
of the graviational waves.

The sensitivity anticipated for the most advanced version of LIGO, a 
4km long ground based interferometer is also shown.  LIGO is scheduled
to start science operations in 2001 with much lower sensitivity.