A Look At Three Different Scenarios for Bulge Formation

Abstract

In this paper, we present three qualitatively different scenarios for bulge formation: a secular evolution model in which bulges form after disks and undergo several central starbursts, a primordial collapse model in which bulges and disks form simultaneously, and an early bulge formation model in which bulges form prior to disks. We normalize our models to the local z=0 observations of de Jong & van der Kruit (1994) and Peletier & Balcells (1996) and make comparisons with high redshift observations. We consider model predictions relating directly to bulge-to-disk properties. As expected, smaller bulge-to-disk ratios and bluer bulge colors are predicted by the secular evolution model at all redshifts, although uncertainties in the data are currently too large to differentiate strongly between the models.

19 pages, 6 figures, accepted for publication in the Astrophysical Journal

References in corpus (7)

• The Evolution of the Global Star Formation History as Measured from the Hubble Deep Field
• The Epoch of Galaxy Formation
• The Panchromatic Starburst Intensity Limit At Low And High Redshift
• Hubble Space Telescope imaging of the CFRS and LDSS redshift surveys II: Structural parameter and the evolution of disk galaxies to z=1
• Optical-IR Spectral Energy Distributions of z>2 Lyman Break Galaxies
• Cloning Hubble Deep Fields I: A Model-Independent Measurement of Galaxy Evolution
• Cloning Hubble Deep Fields: A Model-Independent Measurement of Galaxy Evolution

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