Galaxies in cosmological env: origin of AM?

Full hydro simulations
(10Mh @ DiRAC):

• Resolve disk height
  $\Delta x_\mathrm{min} = 35\ \mathrm{pc}$
• $M_\mathrm{200c} = 10^{12}\ \mathrm{M}_\odot$ @ $z=2$
• SF + AGN & SN feedback
• 3 galaxies, 5× scenario each

$j_0 \times 0.66$

$j_0 \times 0.8$

$j_0 \times 1.2$

$j_0 \times 1.5$

Galaxies in cosmological env: origin of AM?

Cadiou, Pontzen & Peiris+21

Far

Close

Halo (mis-)aligns itself to filament

1,400,000 hydro cells

2,500,000 particles read

in 53 domains (out of 4800)

Now runs in ~10s 🎉!

(soon to be released)

Also happy to talk about pynbody & tangos!

SNO wishlist

Ensure stability / backward compatibility of outputs and
auto-document them (à la part_file_descriptor.txt)
 

Library of on-the-fly analysis tools

• movie routine is a mess and can't be extended
• power-spectrum? Flux through $R_\mathrm{vir}$?

Decouple different parts of the code (e.g., gradually remove global variables)

Fully ported to GPU, bug free