Effects of dark-matter density profiles on bulge formation in very late-type galaxies

Details Effects of dark-matter density profiles on bulge formation in very late-type galaxies Effects of dark-matter density profiles on bulge formation in very late-type galaxies

2003-03-14

arxiv.org/abs/astro-ph/0303318v1

Astronomy and Astrophysics

Astrophysics

17 pages, 6 figures, Submitted to ApJ Letters

Scientific paper

The dynamical evolution of super star clusters has been investigated in dark matter halos depicted with a cuspy- or soft-core density profile. The simulations show that (1) exponential bulges with central cusps form in both cases;(2) distinctive bulge formation rates are derived for cuspy- and soft-core profile; (3) masses of bulges and nuclear clusters are more heavier in case of cuspy-core profile; (4) massive, nuclear star clusters possibly form with no discernible bulges at different ages in cuspy- or soft-core cases.

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