Intergalactic star formation
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GalaxiesStar formationNGC 5291
Duc, P.-A.; et al. Intergalactic star formation. In: Studying galaxy evolution wiht Spitzer and Herschel. Crete (Greece) may 28- june 2 (2006). [http://hdl.handle.net/10481/28407]
Star formation in interacting systems may take place in various locations, from the dust--enshrouded core of Ultraluminous Infrared Galaxies to more unusual places such as the debris of colliding galaxies expelled into the intergalactic medium. Determining whether star-formation proceeds in the latter environment, far from the parent galaxies, in a similar way as in spiral disks has motivated the multi--wavelength study presented here. We collected VLA/HI, UV/GALEX, optical Halpha and MIR/Spitzer images of a few nearby interacting systems chosen for their prominent "intergalactic" star formation activity. Preliminary results on the spectacular collisional HI ring around NGC 5291 are presented.