Is the term “negative feedback” accurately defined and what evidence we have that outflows and winds are doing more than just driving some material out of the system?
Can we distinguish a “real” negative feedback, one that stops the stellar growth of a galaxy, from a “negative” negative feedback, with clear signs of outflow yet little effect on galaxy evolution?
Are the properties of such feedback events different an low and high redshift, low and high AGN luminosity, and at different stages of evolution, e.g. immediately following the ULIRG phase or in galaxies showing no signs of interaction?
I will show several specific examples of outflows that span a range of properties directly related to the above questions.