[Mesa-users] Question

[Jared Goldberg]

Hi Albert (and other interested Mesa users),

Instead of having one run controlled by one inlist, example_ccsn_IIp chains together various inlists in a sequence. Take a look at the rn script. This will tell you the order they run in. Notice how it calls rn1, a script that is nearly identical to the regular rn script you’d find in $MESA_DIR/star/work. Note also that example_ccsn_IIp does NOT make a red supergiant. It starts with a red supergiant and blows it up. 

Loosely speaking, inlist_edep is the inlist that controls the “explosion itself” — it tells MESA to inject energy in the innermost region of the star until the star reaches a total final energy that you specify (a positive number typically on the order of 10^51 ergs). This will create the shock that travels through the star’s envelope in shock_part1-4. 

You could in principle add rotation settings in any of the steps, although some of them may have more problems with rotation than others.  If you want to set rotation controls (or any other controls) that are active throughout the entire explosion up until shock breakout, set them in the files inlist_controls and inlist_star_job, which are called at the same time as other inlists which govern specific “steps” in the explosion (inlist_*part*). Then double check that the same rotation controls are not being reset in the other inlist_part_*.

I am still unsure if rotation can be implemented simply in example_ccsn_iip without causing MESA to crash, but you’re more than welcome to try! For my purposes I have generally considered models without rapid rotation, which we can approximate as non-rotating on the ~1-day timescale from core collapse to shock breakout. In many cases, this is fine, as the relevant effects of rotation often occur when *making the red supergiant* (e.g., by modifying the test_suite case example_make_pre_ccsn), where rotation can be turned on more simply. Then, that red supergiant model could be used as the input model in inlist_part_infall in example_ccsn_IIp. 

Hope this is somewhat helpful. Let us know if you have any other questions. I’m eager to hear of your success in this endeavor. 

Cheers,
~Jared



> On Dec 23, 2018, at 1:04 AM, Being Unique via Mesa-users <mesa-users at lists.mesastar.org> wrote:
> 
> Hello MESA-Users,
> 
> Does inlist_edep in the test_suite example_ccsn_IIp mean the star model's setting before explosion?
> And is that able for me to add rotation settings in the inlist_edep in the test_suite example_ccsn_IIp?
> 
> Many thanks !
> 
> Albert 
> _______________________________________________
> mesa-users at lists.mesastar.org
> https://lists.mesastar.org/mailman/listinfo/mesa-users
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