jellyfish galaxy
{{Short description|Type of galaxy that is being stripped of gas due to ram pressure stripping}}
{{confused|Jellyfish Nebula}}
File:NASA's Hubble Finds Life is Too Fast, Too Furious for This Runaway Galaxy (12952512944).jpg.]]
A jellyfish galaxy is a type of galaxy found in galaxy clusters. They are characterised by ram pressure stripping of gas from the affected galaxy by the intracluster medium, triggering starbursts along a tail of gas.
Jellyfish galaxies have been seen in a number of galaxy clusters including the Hydra Cluster, Abell 2125 (redshift z=0.20; ACO 2125 C153); Abell 2667 (z=0.23; G234144−260358); Abell 2744 (z=0.31; ACO 2744 Central Jellyfish; HLS001427–30234/ACO 2744 F0083; GLX001426–30241 / ACO 2744 F0237 / ACO 2733 CN104; MIP001417–302303 / ACO 2744 F1228; HLS001428–302334; GLX001354–302212 ).
Examples
Example of a jellyfish galaxy JO204.jpg|Jellyfish galaxy JO204 taken by ESO's MUSE instrument.{{cite web|title=Supermassive Black Holes Feed on Cosmic Jellyfish - ESO's MUSE instrument on the VLT discovers new way to fuel black holes|url=https://www.eso.org/public/news/eso1725/|website=www.eso.org|access-date=17 August 2017}}
Of bent time and jellyfish SDSS J1110+6459.jpg|Jellyfish galaxy in SDSS J1110+6459, visible next to the cluster and apparently dripping bright blue material.{{cite web |title=Of bent time and jellyfish |url=https://www.spacetelescope.org/images/potw1846a/ |website=www.spacetelescope.org |access-date=12 November 2018}}
Portrait of a galactic jellyfish (potw2312a).tiff| NASA/ESA Hubble image of galaxy JW100 with streams of star-forming gas dripping from the disc of the galaxy like streaks of fresh paint. These tendrils of bright gas are formed by ram pressure stripping, and their resemblance to dangling tentacles led astronomers to refer it as a ‘jellyfish’ galaxy.
References
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