The galactic stellar nucleation by globular cluster interactions in dwarf galaxies

Details The galactic stellar nucleation by globular cluster interactions in dwarf galaxies The galactic stellar nucleation by globular cluster interactions in dwarf galaxies

2008-02-17

arxiv.org/abs/0802.2361v2

Astronomy and Astrophysics

Astrophysics

2pages,3figures: proceedings of The 1st Subaru International Conference, "Panoramic Views of Galaxy Formation and Evolution" (

Scientific paper

Dinamical Friction Problem is a long-standing dilemma about globular clusters(hereafter,GCs) belonging to dwarf galaxies. The GCs are strongly affected by dynamical friction in dwarf galaxies, and presumed to fall into the galactic center. But GCs do exist in dwarf galaxies. Recentry, a new solution was proposed. If dwarf galaxies have a cored dark matter halo, in which case the effect of dynamical friction will be weaken considerably, and GCs are able to survive beyond the age of the universe. In this study, we discussed why does a constant density cored halo cease dynamical friction, by means of N-body simulations.

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