[Mesa-users] Evolution of helium stars

Jelena Petrović jpetrovic at aob.rs
Wed Jul 29 10:09:31 EDT 2020


Great, thank you, I will try this!

Best,
Jelena

On 2020-07-29 14:10, Rob Farmer wrote:
> Hi,
> You can make a pure helium star using:
> 
> create_pre_main_sequence_model = .true.
> 
> in your star_job inlist
> 
> and then setting in your controls inlist (initial_z, inital_y, and
> initial_he3) such that:
> 
> initial_z + inital_y + initial_he3 = 1
> 
> This will make a star without any H (the remainder from 1 - (
> initial_z + inital_y + initial_he3) is what sets the amount of H in a
> model)
> 
> Rob
> 
> On Wed, 29 Jul 2020 at 13:26, Jelena Petrović <jpetrovic at aob.rs>
> wrote:
> 
>> Dear all,
>> 
>> Is it possible to start calculating evolution from helium stars, so
>> take
>> those as initial models?
>> This stage would correspond to Wolf-Rayet stars that lost all of the
>> 
>> hydrogen and are consisting only of helium with certain metalicity.
>> 
>> Many thanks,
>> Jelena
>> 
>> ----------------------------------------
>> Dr. Jelena Petrovic
>> Senior Research Associate
>> Astronomical Observatory Belgrade
>> ----------------------------------------
>> _______________________________________________
>> mesa-users at lists.mesastar.org
>> 
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