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        Tidal Dwarf Galaxies in the Interacting System NGC 2992/2993

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        901620.pdf (PDF, 679Kb)
        Author
        Brinks, E.
        Duc, P.A.
        Springel, V.
        Pichardo, B.
        Weilbacher, P.
        Mirabel, F.
        Attention
        2299/1493
        Abstract
        We present multi-wavelength results and numerical simulations of the interacting system NGC 2992/2992 (Arp 245). This pair is composed of two colliding spiral galaxies out of which emanate long stellar tails and a bridge. H II regions are observed at the end of one of the stellar tails at the location of an object classified as a tidal dwarf galaxy. Our spectacular VLA HI map reveals a huge intergalactic ring associated with NGC 2993 and a long tidal tail escaping from NGC 2992 coinciding with the optical one, with at its tip a massive clump that hosts most of the atomic gas in the system. The latter is associated with the star-forming tidal dwarf. Unlike the tail, most of the HI ring has no stellar counterpart.
        Publication date
        2000
        Published in
        In: Mapping the Hidden Universe: The Universe behind the Milky Way - The Universe in HI, ASP Conf Series 218
        Other links
        http://hdl.handle.net/2299/1493
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