Cosmology Seminar: Peng Wang (KIPAC)

What	seminar cosmology
When	25 February 08 from 11:00 am to 12:00 pm
Where	Varian Room 355
Contact Name	Laura Duato
Contact Email	lduato@stanford.edu
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Star formation in disk galaxies

I will discuss multi-scale simulations of star formation in disk

galaxies. First, I will present the results of a first MHD

simulation of isolated disk galaxy formation. The simulation shows

that a microgauss level galactic magnetic field can be built up in

~500 Myr starting from a nanogauss seed build. Subsequent evolution

of magnetic field seems to be self-regulated. The model also

predicts the general existence of highly magnetized bubbles

surrounding galactic disks which would affect the interactions of

galaxies with their environments significantly. Next, I will

discuss some numerical issues in modeling star formation and

supernova feedback in galactic scale simulations. Finally, I will

discuss models of star cluster formation and show some preliminary

3D radiation hydro simulations of star cluster formation.

September 2008

KIPAC