Some research highlights (Last updated August 2021)
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​Lyman-Alpha and [CII]  emission from Stephan's Quintet. Line widths
of > 1200 km/s are seem from regions of ~ 1 kpc from the intergalactic
medium of the group. (see Guillard & Appleton+21) 
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​Taffy Galaxies in CO emission (Appleton+2021)
Molecular gas from the bridge between the two galaxies
shows evidence of strong turbulence.