Using a toy model of ram pressure stripping, we show that this can drag a stellar disc and dark matter cusp That the drag force exerted on truncated gas discs is passed to the stellar disc, and surrounding dark matter through their Principally affects the atomic gas in disc galaxies, stripping away outer disc gas to a truncation radius. In addition to the publications, we are gathering many interesting specimens for the GASP aquarium, where you can interactivelly explore the jellyufish galaxies in 3D or walk into them using a VR headset.We investigate the effects of ram pressure stripping on gas-rich disc galaxies in the cluster environment. Enhanced star formation in both disks and ram pressure stripped tails of GASP jellyfish galaxies (Vulcani et al.Star formation in gas outside galaxies (Poggianti et al. The variety of physical processes occurring in a single galaxy group in formation (Vulcani et al. Ultra-Violet Imaging Telescope view of ram-pressure stripping in action: Star formation in the stripped gas of the GASP jellyfish galaxy JO201 in Abell 85 (George et al.X: APEX detection of molecular gas in the tails and in the disks of ram-pressure stripped galaxies (Moretti et al. Jellyfish galaxies in phase-space: an orbital study of intense ram-pressure stripping in clusters (Jaffé et al. GASP VIII: Capturing the birth of a Tidal Dwarf Galaxy in an merging system at ~0.05 (Vulcani et al.Evidence for gas accretion in an isolated nearby galaxy (Vulcani et al. A Hoag's jellyfish: Ram-pressure stripping of a ring galaxy in a massive cluster (Moretti et al.Ram-pressure feeding of supermassive black holes (Poggianti, Jaffe et al.A Muse View of Extreme Ram-pressure-stripping in the Plane of the Sky: The Case of Jellyfish Galaxy JO204 (Gullieuszik et al. JO36: a case of multiple environmental effects at play? (Fritz et al. A MUSE View of Extreme Ram-Pressure Stripping along the Line of Sight: Kinematics of the Jellyfish Galaxy JO201 (Bellhouse, Jaffe et al. Gas Stripping Phenomena in Galaxies with MUSE (Poggianti et al.
#Stellar ram pressure series
Thanks to the unique capabilities of MUSE, GASP is accumulating many interesting results that are being published in a series of papers: The MUSE data is revealing great amounts of detail, as can be appreciated in the images below that separate the stellar light (white) from the ionized gas (red, Halpha). GASP's main aim is to understand how, when and why gas is removed from galaxies in different environments. The program, called GASP (Dissecting GAs Stripping Phenomena in galaxies with MUSE), started taking data in October 2015. Poggianti) to study 114 of jellyfish galaxies (and a few non-stripped galaxies) with MUSE/VLT. 2016).Ī visual search lead to the identification of over 400 jellyfish candidates: 344 candidates in 71 galaxy clusters of the OMEGAWINGS+WINGS sampleĪnd 75 candidates in groups and lower mass structures in the PM2GC sample. In different environments (Poggianti -incl. We have conducted the first systematic search for galaxies that are being stripped of their gas at low-z (z=0.04-0.07) That exhibit tentacles of debris material with a characteristic jellyfish morphology. Galaxies that are being stripped of their gas can sometimes be recognized from their optical appearance.Įxtreme examples of stripped galaxies are the so-called ``jellyfish galaxies'',
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