Alessandro Ignesti

#paperday #Extragalactic What determines whether a galaxy can become a jellyfish galaxy? Thanks to new Meerkat data, we now propose that this may be due to a combination of supersonic orbits and interactions with the magnetic field of the galaxy cluster. More at arxiv.org/abs/2602.21821

GASP jellyfish galaxies. More at https://web.oapd.inaf.it/gasp/

#paperday We have used the gas trails of jellyfish galaxies to trace the ICM small-scale motions. We find a turbulence-like spectrum extending below the expected ICM dissipation scale, suggesting that the ICM viscosity is less than 10% of the Spitzer value. More at arxiv.org/abs/2411.07034