Andrew Benson

George Ellery Hale Distinguished Scholar in Theoretical Astrophysics

The Observatories of the Carnegie Institution for Science



I am the George Ellery Hale Distinguished Scholar in Theoretical Astrophysics at the Observatories of the Carnegie Institution for Science. My research is described in more detail here and my publications are available here. Current projects on which I'm working, together with available projects for prospective postdocs are listed here.
My research program centers around the process of galaxy formation, with a particular emphasis on formlating a coherent picture of the many different aspects of this problem. I have developed a new model of galaxy formation, Galacticus, which is now available to the community as an open source project. The approach blends both analytic understanding and significant number-crunching utilizing in-house and external compute clusters. Galacticus is being used by many research groups to study everything from sub-mm galaxies and galaxy clusters through to the host galaxies of type Ia supernovae. These are just a few examples of the areas of galaxy formation science that it can address.

Discovery of a Companion to a Nearby Dwarf Galaxy

Working within a team lead by Mike Rich (UCLA) we discovered a faint companion of the nearby dwarf galaxy NGC 4449. The companion, an even smaller galaxy known as NGC 4449B, orbits around NGC 4449 and is evidence of the hierarchical growth of structure in our Universe. The results are published in Nature. Read more...



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Page last updated Saturday, July 5, 2014.