My Research
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 (Harvard)
- James Wadsley (MacMaster, CA)
- Alyson Brooks (soon Caltech Theory Fellow)
- Chris Brook (UW) + Grad students C.Christensen, S.Loebman, J.Meyer, A.Stilp J.Stockton at UNM (who made the awesome HST/Spitzer composite image on this page) and undergrads Cowin and Kropat.
Recent Papers
Polar Disk Galaxies
What are they? How do they form? It's all about the Cosmic Web. Link.…
Forming Disk Galaxies
Why is it so hard to simulate galaxy disks? Recent Improvements and Old Problems in Numerical Simulations of Galaxy Formation. Link.…
Heavy Metals
The Metallicity-Galaxy Stellar Mass relation. Why small Galaxies are metal poor? Link.…