Oral Presentation

Quenching for ram pressure in galaxy clusters

Author(s): Bianca Poggianti

Presenter: Bianca Poggianti (INAF-Astronomical Observatory of Padova)

Ram pressure stripping is considered the main mechanism for environmental quenching in galaxy clusters. I will review our current knowledge of the importance and effects of ram pressure on the star formation activity in galaxies, as well as on AGN activity and morphological evolution. I will present an overview of spatially resolved star formation enhancement and quenching in galaxies undergoing ram pressure and in fully quenched post-starburst galaxies, discussing the evolutionary links between these two galaxy categories. Very detailed studies are now available in low redshift clusters, but studies at z=0.3-0.6 are opening up a window on the role of ram pressure at different redshifts and the first studies at z=1 and beyond are suggesting an early kick-off of this phenomenon. Finally, if time allows it, I would like to comment on the observational selection methods and biases inherent to the study of ram pressure, also in view of future large surveys.