[mesa-users] PP vs CNO

[Willie Strickland]

I am trying to prepare an exercise based on

	http://mesastar.org/teaching-materials/graduate-course-berkeley/pp-vs-cno

posted last year by Josiah.


&controls contains the following section

  ! tune nuclear networks
  ! rate_factor = 0 means fully off
  ! rate_factor = 1 means fully on
      net_pp_rate_factor = 1
      net_cno_rate_factor = 1

I have to comment the last two lines to get the inlist to run.


A search of $MESA_DIR/star/defaults  finds no record of those controls in 6794.

In $MESA_DIR/satr/defaults/star_job.defaults  lines 1472 - 1480 I find

        !### num_special_rate_factors
        !### reaction_for_special_factor
        !### special_rate_factor
        ! For using other special rate factors.
        ! `num_special_rate_factors` must be <= `max_num_special_rate_factors`.

     num_special_rate_factors = 0
     reaction_for_special_factor(:) = ''
     special_rate_factor(:) = 1

Is this a new and improved version of those controls?


I tried adding the following to the inlist &star_job section.

!    special_rate_factors
     num_special_rate_factors = 3

     reaction_for_special_factor(1) = 'pp'
     special_rate_factor(1) = 1

     reaction_for_special_factor(2) = 'cno'
     special_rate_factor(2) = 0

     reaction_for_special_factor(3) = 'tri_alfa'
     special_rate_factor(3) = 0

That does not appear to be the correct use of those factors.  The results are unaffected.


 &star_job show_net_reactions_info = .true. provides the following info.  Are these the variables to which special_rate_factors are applied?



Thanks,

Willie
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