My Research
I am currently Research Associate Professor at the UW Astronomy Department. My main research field is cosmic structure formation. Using computer simulations I try to understand how Galaxies, Super Massive Black Holes and Galaxy Clusters formed out of Dark matter, Baryons, Dark Energy ...and a lot of physics. It is a rapidly changing, fascinating field, that rewards a vivid imagination, attention to details and collaborative work. Plus, you get to play with big computers and Galaxies are pretty to look at. What's not to like? Here is a list of topics and relative papers that I am interested in these days:- Cosmology & The Cold Dark Matter Paradigm
- The Substructure Problem
- High Redshift Galaxies
- JWST: Aka the New Space Telescope
- Simulating Disk Galaxies
My Long Term Collaborators
I am part of an international collaboration that started in the mid 90ies, the: N-Body Shop..
- Lucio Mayer (ETH, Univ of Zurich)
- Beth Willman (Haverford College)
- James Wadsley (MacMaster, CA)
- Alyson Brooks (now Caltech Theory Fellow)
- Chris Brook (UW) + Grad students C.Christensen, S.Loebman, J.Bellovary, A.Stilp J.Stockton at UNM (who made the awesome HST/Spitzer composite image on this page) and undergrads Pope, Cowin and Kropat.
Recent Papers
Bulgeless dwarf galaxies and dark matter cores from supernova-driven outflows.
We gave CDM a hand. The press liked it too. Nature, 2010, 463, 203 Link.…
The Luminosity Size Relation in Disk Galaxies
Caltech Fellow Alyson Brooks, in collaboration with me and the rest of our group shows that disk sizes in CDM simulations are similar to the observed ones at z less than 1. A first! Link.…
THINGS vs CDM dwarfs.
Solving the core/cusps discrepancy: real and simulated CDM dwarfs have the same cored DM distribution (Oh et al.) NEW! Link.…