[mesa-users] MESA code Questions!!

Willie Strickland cwskas at gmail.com
Wed Jul 8 12:33:22 EDT 2015


I may have missed this info a previous email.

1.  Are you starting from one of the test cases?  If so, which?

2.  Please provide a copy of your inlist, inlist_project & inlist_pgstar as a reference

Willie



> On Jul 8, 2015, at 11:08 AM, Farag, Ebraheem Khaled <farag.11 at lanl.gov> wrote:
> 
> Hello,
>        Is there a method by which I can access the initial abundances of He3 so i don't have to assume 0 for that particular isotope or H2. A better solution would be if i could combine the two isotopes into one element abundance I could graph. Any possible solutions in this field?
> 
> thanks(this forum has been very helpful)
> -Ebraheem
> ________________________________________
> From: Willie Strickland [cwskas at gmail.com]
> Sent: Wednesday, July 08, 2015 9:51 AM
> To: Farag, Ebraheem Khaled
> Cc: mesa-users
> Subject: Re: [mesa-users] MESA code Questions!!
> 
> As Josiah said in his recent reply, you must supply a non-negative value for each.  Try adding the lines
> 
> initial_h2 = 0
> initial_he3 = 0
> 
> Willie
> 
>> 
>> On Jul 7, 2015, at 11:07 AM, Josiah Schwab <jwschwab at berkeley.edu> wrote:
>> 
>> Yes.  The message isn't joking: you need to provide values for h1, h2,
>> he3, and he4.  So I suggest you provide values for h2 and he3.  Maybe
>> you want to set them to 0 or something, but you can't leave them as -1.
>> 
>> Josiah
>> 
> 
> 
>> On Jul 7, 2015, at 10:46 AM, Farag, Ebraheem Khaled <farag.11 at lanl.gov> wrote:
>> 
>> I am still getting the same error.
>> "if set_uniform_initial_composition is true, then set hydrogen and helium mass fractions according to the following: If no h2 in current net, then this will be added to h1. If no he3 in current net, then this will be added to he4."
>> -http://mesa.sourceforge.net/star_job_defaults.html#extra_parameters
>> 
>> i have now:
>> ----------------------------
>> ! uniform initial composition of AGS05 abundances
>>   set_uniform_initial_composition = .true.
>>   initial_h1 = 0.7295
>>   initial_he4 = 0.25700
>>   initial_zfracs = 5
>> ---------------------------------------
>> Any more suggestions?
> 





More information about the Mesa-users mailing list