This is a talk given at lunch time, usually in the conference room at noon.
A fraction of AGB stars produce SiO maser emission that can penetrate any dust. Recent advances in observational strategy enable the detection of thousands of these sources, with the maser line being used to measure a radial velocity.
In the last decade the potential impact of galaxy-scale outflows driven by quasars
on their environment has become widely recognized. Quasars provide radiative
feedback in the form of pressure and photo heating, and have been increasingly