LoTSS jellyfish galaxies

Numerous examples of ram pressure stripping in galaxy clusters are present literature; however, substantially less work has been focused on lower mass groups. In this we use the LOFAR Two-metre Sky Survey (LoTSS) to search for jellyfish galaxies ~500 SDSS groups (z<0.05), making most comprehensive date. We identify 60 with extended, asymmetric radio continuum tails, which found across entire range group from $10^{12.5} < M_\mathrm{group} 10^{14}\,h^{-1}\,\mathrm{M_\odot}$. compare identified LoTSS presented Roberts et al. (2021), allowing us effects three decades group/cluster mass. find that commonly clusters, frequency decreasing towards lowest Both orientation observed and positions phase space, suggest stripped more slowly relative clusters. Finally, star formation rates consistent `normal' star-forming galaxies, is contrast cluster have clearly enhanced rates. On whole, there clear evidence ongoing (down very low masses), though strength appears smaller than Differences efficiency versus likely contributes positive trend between quenched fraction host halo local Universe.