  We discuss astrophysical scenarios relevant to the generation of
gravitational waves (GW) and effects expected to arise from the interaction of
GW and electromagnetic (EM) radiation. A strong programme of coordinated GW and
EM astrophysical studies must be established in order to ensure the
exploitation of the full scientific potential of the LISA mission. We describe
on-going astrophysical work, and suggest alternative approaches to current
studies, which are relevant to these considerations.
