COMMON ENVELOPE SIMULATIONS

Summary of last two weeks' work

  1. Finished XSEDE proposal with Baowei & Eric
  2. Continued to write/edit energy paper
  3. Continued running simulations
  4. Preliminary analysis of simulations

Energy paper

  • Will be on Overleaf before Oct 31
  • Meeting on Nov 6?
  • ​en.pdf.

Roche lobe overflow in high resolution

http://www.pas.rochester.edu/~lchamandy/Graphics/RGB/Post-sink_particle/Post-modified_Lane_Emden/p_mult_143_160_161_162.png

​Face-on density (zoomed in) (Run 160 a=109Rsun), equal to theoretical Roche limit separation for this system.
​Face-on density (zoomed in) (Run 161 a=73.5Rsun)
​Face-on density (zoomed in) (Run 162 a=109Rsun with ambient density 10^-10^ g/cm^3^)

The sound-crossing time for the RG is about 8 days or ~35 frames. This is the approximate time the star would take to deform to fill the Roche lobe.

While this deformation is happening, the secondary accretes from the ambient medium.

Runs like fiducial run 143 (Model A of Paper I) but with different secondary mass

http://www.pas.rochester.edu/~lchamandy/Graphics/RGB/Post-sink_particle/Post-modified_Lane_Emden/p_mult_143_149_151.png

​Face-on density (zoomed in) (Run 149, m2=0.5 Msun)
​Face-on density (zoomed in) (Run 151, m2=0.25 Msun)

Convergence study for softening length and resolution

http://www.pas.rochester.edu/~lchamandy/Graphics/RGB/Post-sink_particle/Post-modified_Lane_Emden/p_mult_143_152_153_154.png

Convergence study for size of maxlevel refinement region

http://www.pas.rochester.edu/~lchamandy/Graphics/RGB/Post-sink_particle/Post-modified_Lane_Emden/p_mult_143_163.png http://www.pas.rochester.edu/~lchamandy/Graphics/RGB/Post-sink_particle/Post-modified_Lane_Emden/p_mult_143_163_zoom.png

Medium resolution AGB run (one less level of AMR than fiducial RGB run)

http://www.pas.rochester.edu/~lchamandy/Graphics/RGB/Post-sink_particle/Post-modified_Lane_Emden/p_mult_143_164.png

http://www.pas.rochester.edu/~lchamandy/Graphics/RGB/Post-sink_particle/Post-modified_Lane_Emden/Run164/rho2D_faceon_frame100_164.png http://www.pas.rochester.edu/~lchamandy/Graphics/RGB/Post-sink_particle/Post-modified_Lane_Emden/Run164/rho2D_faceon_mesh_frame100_164.png
​Face-on density (zoomed in) (Run 164, m2=1 Msun)

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