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Simulations on the survivability of Tidal Dwarf Galaxies

Published online by Cambridge University Press:  09 February 2015

Sylvia Ploeckinger ,
Simone Recchi ,
Gerhard Hensler  and
Pavel Kroupa
Sylvia Ploeckinger
Affiliation:
Department for Astrophysics, University of Vienna, Türkenschanzstr. 17, 1180 Vienna, Austria email: sylvia.ploeckinger@univie.ac.at
Simone Recchi
Affiliation:
Department for Astrophysics, University of Vienna, Türkenschanzstr. 17, 1180 Vienna, Austria email: simone.recchi@univie.ac.at
Gerhard Hensler
Affiliation:
Department for Astrophysics, University of Vienna, Türkenschanzstr. 17, 1180 Vienna, Austria email: gerhard.hensler@univie.ac.at
Pavel Kroupa
Affiliation:
Helmholtz-Institut fur Strahlen- und Kernphysik, Nussallee 1416, D-53115 Bonn, Germany email: pavel@astro.uni-bonn.de
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Abstract

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We present detailed numerical simulations of the evolution of Tidal Dwarf Galaxies (TDGs) after they kinematically decouple from the rest of the tidal arm to investigate their survivability. Both the short-term (500 Myr) response of TDGs to the stellar feedback of different underlying stellar populations as well as the long-term evolution that is dominated by a time dependent tidal field is examined. All simulated TDGs survive until the end of the simulation time of up to 3 Gyr, despite their lack of a stabilising dark matter component.

Keywords

galaxies: dwarf - galaxies: evolution - galaxies: formation
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 10 , Issue S309: Galaxies in 3D across the Universe , July 2014 , pp. 157 - 158
Copyright
Copyright © International Astronomical Union 2015 

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