Formation of galactic bulges

Details Formation of galactic bulges Formation of galactic bulges

Apr 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aipc..470...48g&link_type=abstract

The 9th astrophysics conference: After the dark ages, when galaxies were young (the Universe at 2<Z<5). AIP Conference Proceedi

Astronomy and Astrophysics

Astrophysics

1

Origin, Formation, Evolution, Age, And Star Formation, Dark Matter

Scientific paper

We study formation of galactic bulges in a representative CDM-type cosmological model using hydrodynamic numerical simulations. We show that currently favorable cosmological models predict that galactic bulges form at moderately high redshifts, z~4, with correct density profiles and sizes. On the contrary, cosmological models with more small scale power, like the PIB class of models, would predict galactic bulges that are two orders of magnitude more dense than the observed ones.

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