[mesa-users] Limiting the mass transfer

[Odette Toloza]

Thank you very much.
I think it is worth it to point out a swap between
extras_binary_finish_step and extras_binary_check_model.

Cheers,
Odette.

2017-05-19 15:36 GMT+01:00 Pablo Marchant <pamarca at gmail.com>:

> Hi Odette, this is straightforward.
>
> In you src/run_binary_extras you can use this
>
>        integer function extras_binary_check_model(binary_id)
>           type (binary_info), pointer :: b
>           integer, intent(in) :: binary_id
>           integer :: ierr
>           call binary_ptr(binary_id, b, ierr)
>           if (ierr /= 0) then ! failure in  binary_ptr
>              return
>           end if
>
>           !check if mass transfer rate reached maximun, assume merger if
> it happens
>           extras_binary_check_model = keep_going
>           if(abs(b% mtransfer_rate) >= b% max_implicit_abs_mdot*Msun/secyer)
> then
>              extras_binary_finish_step = terminate
>              write(*,*) "TERMINATING: Reached maximum mass transfer rate"
>           end if
>        end function extras_binary_check_model
>
> and in you inlist you choose the value of max_implicit_abs_mdot. I usually
> prefer doing it using max_implicit_abs_mdot instead of directly writing the
> limit, because at the onset of unstable MT the code might not be able to
> converge to a solution and get stuck.
>
> On Fri, May 19, 2017 at 4:48 AM, Odette Toloza <odette.toloza at gmail.com>
> wrote:
>
>> Hi Mesa users,
>>
>> I was wondering if I can implement a limit to the mass  transfer as a
>> stopping condition, when I evolve a binary?
>>
>> Cheers,
>> Odette.
>>
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>>
>
>
> --
> Pablo Marchant Campos
> M.Sc on Astrophysics, Universidad Católica de Chile
> PhD student, Argelander-Institut für Astronomie
>
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