Integral Field Spectroscopy of Galaxy Emission Line Haloes.

We summarise recent results from two programmes of integral field spectroscopy (IFS) on galaxy emission line haloes. Firstly, we present SAURON IFS of the 100 kpc-scale diffuse Lyα-emitting blobs in the SSA22 protocluster at z=3.09 and show how IFS helped uncover evidence for a galaxy-wide superwind outflow. Secondly, we present VIMOS observations of Hα emission in the cores of z ∼ 0.1 cooling flow clusters and illustrate how IFS is an essential tool for understanding these complex regions. [ABSTRACT FROM AUTHOR]