Early evolution of Tidal Dwarf Galaxies

2); (2) INAF - Osservatorio Astronomico di Trieste; (3) Argelander Institute for Astronomy; Austria; Bonn; Ch. Theis (1); Germany); G. Hensler (1) ((1) Institute of Astronomy; Italy; P. Kroupa (3)

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Early evolution of Tidal Dwarf Galaxies

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arxiv astro-ph/0609363 v1 pith:FNZAZ5QM submitted 2006-09-13 astro-ph

Early evolution of Tidal Dwarf Galaxies

S. Recchi (1 , 2) , P. Kroupa (3) , Ch. Theis (1) , G. Hensler (1) ((1) Institute of Astronomy , Vienna University , Austria , (2) INAF - Osservatorio Astronomico di Trieste

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Italy (3) Argelander Institute for Astronomy Bonn Germany)

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Our aim is to study the evolution of tidal dwarf galaxies. The first step is to understand whether a model galaxy without Dark Matter can sustain the feedback of the ongoing star formation. We present tests of the evolution of models in which star formation efficiency, temperature threshold, initial distribution of gas and infall are varied. We conclude that it is feasible to keep a fraction of gas bound for several hundreds of Myr and that the development of galactic winds does not necessarily stop continuous star formation.

Early evolution of Tidal Dwarf Galaxies

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