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         “Zooming in on star and protoplanetary disk formation “





 Thursday, 12. March 2015

Audio-only-Recording as MP3-File (smallest possible size):

       -   Audio.mp3   (ca.28 Mb)


Video-Recording for any system with MP4-support:

       -   Video.mp4   (ca.174 Mb)


 15:15 – 16:15


Abstract :

Adaptive 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.


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