Modeling Galaxy Evolution

Details Modeling Galaxy Evolution Modeling Galaxy Evolution

Mar 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aspc..381..293r&link_type=abstract

The Second Annual Spitzer Science Center Conference: Infrared Diagnostics of Galaxy Evolution. ASP Conference Series, Vol. 381,

Astronomy and Astrophysics

Astronomy

Scientific paper

We use a model based on binary aggregation of seed galaxies to reproduce the properties of Spitzer-detected galaxies across the infrared, submillimeter, and radio spectrum. This model successfully fits the overall redshift distributions, as well as the prominent peak in 24μm number counts near z ˜ 1.8. Difficulties remain in fitting the relatively large number of objects indicated at z > 2.3, and in the position of the peak in counts near z ˜ 0.7. These remaining discrepancies may arise from observational effects (e.g., errors in photometric redshifts, underestimation of numbers of AGN) or because of aspects of galaxy evolution not well represented by the model.

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