Molecular gas properties and star formation in nearby jellyfish galaxies

The ALMA JELLY project observed a sample of 28 jellyfish galaxies in the nearby clusters Coma, Leo and Norma. The sample galaxies cover a range of evolutionary stages of the interaction with the surrounding intra-cluster medium, allowing to study the evolution of molecular component of the galaxies from early to late stages of ram pressure stripping. We will present the results of the ALMA JELLY survey, focusing on the incidence and properties of molecular component, as well as on the efficiency of star formation. As part of the ALMA JELLY project, we have supplemental high-resolution observations of CO, HCN, HCO+ lines for one of the best galaxies in the sample. At a 100 pc resolution, these observations reveal for the first time physical parameters of the molecular clouds that have formed in-situ in the stripped tail, out to nearly 40 kpc away from the parent galaxy.