Old and New Major Mergers in the SOSIMPLE galaxy, NGC 7135
  The simultaneous advancement of high resolution integral field unit
spectroscopy and robust full-spectral fitting codes now make it possible to
examine spatially-resolved kinematic, chemical composition, and star-formation
history from nearby galaxies. We take new MUSE data from the Snapshot Optical
Spectroscopic Imaging of Mergers and Pairs for Legacy Exploration (SOSIMPLE)
survey to examine NGC 7135. With counter-rotation of gas, disrupted kinematics
and asymmetric chemical distribution, NGC 7135 is consistent with an ongoing
merger. Though well hidden by the current merger, we are able to distinguish
stars originating from an older merger, occurring 6-10 Gyr ago. We further find
a gradient in ex-situ material with galactocentric radius, with the accreted
fraction rising from 0% in the galaxy centre, to ~7% within 0.6 effective
radii.
