[Mesa-users] How to edit inlist_project and to implement a control of the mass loss?

amber lauer amberlauer at gmail.com
Thu May 30 17:24:56 EDT 2019


Are you looking to control mass loss for the whole lifespan (or model span)
or just during certain phases? Also, are looking to set the mass loss to a
specific rate or do something more specific?
=================================
Dr. Amber Lauer
Postdoctoral Researcher
Triangle Universities Nuclear Lab
Duke University
amber.lauer at tunl.duke.edu <amber.lauer at duke.edu>


On Thu, May 30, 2019 at 3:18 PM Bergerson Van Hallen via Mesa-users <
mesa-users at lists.mesastar.org> wrote:

>
> Hi! I'm Bergerson Van Hallen a student of Physics in State University of
> Ponta Grossa - Brazil. I use MESA program some time ago, however I have
> doubt on how (which way) I can edit the lists with input parameters to
> make a simulation perhaps more realistic. My job is with spectroscopy,
> photometry and stellar evolutio of the B, Be, and O stars. I would like
> to know if it is possible to implement in inlist_project any code or
> parameter which concerns mass loss in these types of stars B and O. I
> found in controls defaults examples the following parameter that perhaps
> could help me, but I'm note sure:
>
> *Vink_scaling_factor = 0d0. (1)*
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> Will this be implemented in my inlist_project could you give me a more
> realistic result? Obviously, I think that some parameter of mass loss
> associated with rotation (more important for Be stars) could result in an
> even more realistic simulation for stellar evolution. Does such a
> parameter exist in examples in the controls defaults section or in others
> inlists_projects? Another question I have is how to implement *(1)* in
> inlist_project. I should only put:
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> *! For the sake of future readers of this file (yourself included),! ONLY
> include the controls you are actually using.  DO NOT include! all of the
> other controls that simply have their default values.&star_job  ! begin
> with a pre-main sequence model    create_pre_main_sequence_model = .true.
> ! save a model at the end of the run    save_model_when_terminate =
> .false.  ! display on-screen plots    pgstar_flag = .true./ !end of
> star_job namelist&controls  ! starting specifications    initial_mass = 1.0
> ! in Msun units  ! Vink_scaling_factor    Vink_scaling_factor = 0d0.  !
> stop when the star nears ZAMS (Lnuc/L > 0.99)    Lnuc_div_L_zams_limit =
> 0.99d0    stop_near_zams = .true.  ! stop when the center mass fraction of
> h1 drops below this limit    xa_central_lower_limit_species(1) = 'h1'
> xa_central_lower_limit(1) = 1d-3/ ! end of controls namelist*
>
>
> and wait until the end of the simulation?
>
> Well, I'm just a beginner in the MESA program and I still do not have
> enough skill to manipulate my simulations.
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> So, from now , I'm very grateful for any explanation or help with my
> doubts.
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> Bergerson Van Hallen
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> *Bergerson Van Hallen Vieira da Silva*
> Programa de Pós Graduação em Física - Doutorado
> Universidade Estadual de Ponta Grossa
> Av. Carlos Cavalcanti, 4748 - Campus Uvaranas
> CEP 84030-900, Ponta Grossa, Paraná, Brasil
> Contato: + 55 44 98822 8987
> e-mail: bgerso at hotmail.com
> _______________________________________________
> mesa-users at lists.mesastar.org
> https://lists.mesastar.org/mailman/listinfo/mesa-users
>
>
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