Speaker
Åke Nordlund
Description
daptive mesh refinement (AMR) simulations with the RAMSES
code allow us to zoom in to sub-AU scales from Giant
Molecular Cloud (GMC) outer scales (~ 40pc). With grid
sizes down to ~100 AU (16 levels of factor 2 refinement) we
can follow supernova driving of star formation over Myr time
scales. With 22 level of refinement we can follow the
accretion history of individual stars over ~100 kyr with
grid sizes down to ~2 AU, and with 29 levels of refinement
we can study the dynamics of accretion disks with jets and
disk winds over time scales ~100 yr, with grid sizes down to
~0.015 AU. We are currently implementing AMR radiative
energy transfer and non-equilibrium chemistry with dust in
the RAMSES code, and also developing a new moving-mesh AMR
code (DISPATCH), intended for the near future era of
exa-scale computing.
