[Mesa-users] Mass loss in low mass star during PMS

[Roque Caballero Navarro]

Dear Francis,

   Many thanks for your feedback. Before it, I was testing the following configuration (copied from a test):

  ! mass loss
  cool_wind_full_on_T = 4.3d3
  cool_wind_RGB_scheme = 'Reimers'
  RGB_to_AGB_wind_switch = -1
  Reimers_scaling_factor = 0.5d0

   Does it make sense for you to use the "cool_wind_full_on_T" parameter. I understood that this one governs when the wind routine is started. Should it be also used the "cool_wind_AGB_scheme" one?

Kind regards,

Roque
________________________________
De: Francis Timmes <fxt44 at mac.com>
Enviado: martes, 17 de abril de 2018 23:06
Para: Roque Caballero Navarro
Cc: Frank Timmes; mesa-users at lists.mesastar.org
Asunto: Re: [Mesa-users] Mass loss in low mass star during PMS

hi roque,

if one has a known mass loss rate to impose, it can be as simple as

mass_change = value  ! in msun/yr

http://mesa.sourceforge.net/controls_defaults.html#mass_gain_or_loss

something fancier like

      cool_wind_RGB_scheme   = 'Reimers'
      cool_wind_AGB_scheme   = 'Blocker'
      RGB_to_AGB_wind_switch = 1d-4
      Reimers_scaling_factor = 0.1
      Blocker_scaling_factor = 0.5

will have a small mass loss during the main sequence,
which you can test for yourself by examining the history of

star_mdot


fxt





> On Apr 17, 2018, at 12:21 PM, Roque Caballero Navarro via Mesa-users <mesa-users at lists.mesastar.org> wrote:
>
> Dear all,
>
>    I'm modeling the evolution of a star with 1 solar mass from the PMS till the TAMS and I want to activate the mass loss option during the simulation. According to MESA documentation it seems to me that this process takes only place during the RGB and AGB evolution phases. So, my question is: is it possible to model mass loss in early stages as the PMS and MS of a low mass star? If so, could you let me know which options should I select?
>
>     Many thanks in advance.
>
> Kind regards,
>
> Roque
>
> _______________________________________________
> mesa-users at lists.mesastar.org
> https://lists.mesastar.org/mailman/listinfo/mesa-users
>

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