Astrophysics Seminars

We use local three-dimensional magnetohydrodynamic simulations to investigate the quasi-equilibrium states of galactic disks regulated by star formation feedback. We incorporate effects from massive-star feedback via time-varying heating rates and...

I will present results from a search for gamma-ray emission in nine Milky Way satellites recently discovered in the Dark Energy Survey. The nearest of these, Reticulum 2, shows evidence for a signal in public Fermi data. The detected emission is...

Planets are formed out of sub-micrometer sized solid particles that orbit young stars in their accretion disks. The growth of these particles, their transport, and the structure and dynamics of the gaseous accretion disk are tightly interlinked...

The universe is teeming with very high energy gamma ray sources (> 100 GeV), but it is generally thought that their impact on the universe is minor at best. On energetic grounds, this assumption seems well-founded because the energy density in TeV...