GASP XXXIII. The ability of spatially resolved data to distinguish among
  the different physical mechanisms affecting galaxies in low-density
  environments
  Galaxies inhabit a wide range of environments and therefore are affected by
different physical mechanisms. Spatially resolved maps combined with the
knowledge of the hosting environment are very powerful to classify galaxies by
physical process. In the context of the GAs Stripping Phenomena in galaxies
(GASP), we present a study of 27 non-cluster galaxies: 24 of them were selected
for showing asymmetries and disturbances in the optical morphology, suggestive
of gas stripping, three of them are passive galaxies and were included to
characterize the final stages of galaxy evolution. We therefore provide a
panorama of the different processes taking place in low-density environments.
The analysis of VLT/MUSE data allows us to separate galaxies into the following
categories: Galaxy-galaxy interactions (2 galaxies), mergers (6), ram pressure
stripping (4), cosmic web stripping (2), cosmic web enhancement (5), gas
accretion (3), starvation (3). In one galaxy we identify the combination of
merger and ram pressure stripping. Only 6/27 of these galaxies have just a
tentative classification. We then investigate where these galaxies are located
on scaling relations determined for a sample of undisturbed galaxies. Our
analysis shows the successes and limitations of a visual optical selection in
identifying the processes that deplete galaxies of their gas content and probes
the power of IFU data in pinning down the acting mechanism.
