[Mesa-users] Problem with a Mass loss from a binary
AbdelBassit Senhadji
sen-abd at hotmail.fr
Thu Oct 28 03:09:07 UTC 2021
Hi Rob:
After changing the initial period I did:
For ./rn
DATE: 2021-10-27
TIME: 23:06:43
read inlist_project
version_number 15140
WARNING: Failed to find eos namelist in file: inlist1
load saved model test1.mod
finish_load_model: failed in set_vars
failed in finish_load_model
star_read_model ierr -1
do_load1_star ierr -1
DATE: 2021-10-27
TIME: 23:06:44
For ./re
restart from x465
DATE: 2021-10-27
TIME: 23:06:37
read inlist_project
version_number 15140
WARNING: Failed to find eos namelist in file: inlist1
read photos/1_x465
net name co_burn.net
kap_option gs98
kap_CO_option gs98_co
kap_lowT_option lowT_fa05_gs98
OMP_NUM_THREADS 12
__________________________________________________________________________________________________________________________________________________
step lg_Tmax Teff lg_LH lg_Lnuc Mass H_rich H_cntr N_cntr Y_surf eta_cntr zones retry
lg_dt_yr lg_Tcntr lg_R lg_L3a lg_Lneu lg_Mdot He_core He_cntr O_cntr Z_surf gam_cntr iters
age_yr lg_Dcntr lg_L lg_LZ lg_Lphoto lg_Dsurf C_core C_cntr Ne_cntr Si_cntr v_div_cs dt_limit
__________________________________________________________________________________________________________________________________________________
WARNING: Failed to find eos namelist in file: inlist2
read photos/2_x465
net name basic.net
kap_option gs98
kap_CO_option gs98_co
kap_lowT_option lowT_fa05_gs98
OMP_NUM_THREADS 12
__________________________________________________________________________________________________________________________________________________
step lg_Tmax Teff lg_LH lg_Lnuc Mass H_rich H_cntr N_cntr Y_surf eta_cntr zones retry
lg_dt_yr lg_Tcntr lg_R lg_L3a lg_Lneu lg_Mdot He_core He_cntr O_cntr Z_surf gam_cntr iters
age_yr lg_Dcntr lg_L lg_LZ lg_Lphoto lg_Dsurf C_core C_cntr Ne_cntr Z_cntr v_div_cs dt_limit
__________________________________________________________________________________________________________________________________________________
retry: max residual jumped -- give up in solver 1468
num_retries 83
max_number_retries 80
stopping because of problems -- too many retries
retry 1468
num_retries 83
max_number_retries 80
stopping because of problems -- too many retries
check_rel_error_in_energy delta_value NaN
STOP check_change
DATE: 2021-10-27
TIME: 23:06:39
________________________________
De : Rob Farmer <robert.j.farmer37 at gmail.com>
Envoyé : 27 octobre 2021 16:42
À : AbdelBassit Senhadji <sen-abd at hotmail.fr>
Cc : mesa-users <mesa-users at lists.mesastar.org>
Objet : Re: [Mesa-users] Problem with a Mass loss from a binary
What's happen if you try a ./rn? It's time to experiment.
Rob
On Tue, 26 Oct 2021, 21:21 AbdelBassit Senhadji, <sen-abd at hotmail.fr<mailto:sen-abd at hotmail.fr>> wrote:
HI Rob,
I have added these lines in both inlist1 and inlist2
load_saved_model = .true.
!load_saved_model_for_RSP = .true.
saved_model_name = 'test1.mod'
load_saved_model = .true.
!load_saved_model_for_RSP = .true.
saved_model_name = 'test2.mod'
On the website of MESA it says "By default at the start of a run a zams starting model is loaded, and then the initial_mass, initial_z, and initial_y" does it mean that I need just to make ./rn and it will restart from the last models (test1.mod and test2.mod)?
Thanks to clarify that to me!
Abdel
________________________________
De : Rob Farmer <robert.j.farmer37 at gmail.com<mailto:robert.j.farmer37 at gmail.com>>
Envoyé : 19 octobre 2021 09:07
À : AbdelBassit Senhadji <sen-abd at hotmail.fr<mailto:sen-abd at hotmail.fr>>
Cc : mesa-users at lists.mesastar.org<mailto:mesa-users at lists.mesastar.org> <mesa-users at lists.mesastar.org<mailto:mesa-users at lists.mesastar.org>>
Objet : Re: [Mesa-users] Problem with a Mass loss from a binary
Hi,
Saving a model for each star in a binary is the same as when doing single stars https://docs.mesastar.org/en/r15140/reference/star_job.html#save-model-filename<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdocs.mesastar.org%2Fen%2Fr15140%2Freference%2Fstar_job.html%23save-model-filename&data=04%7C01%7C%7Cd9fdb0f3dcd74b5be85a08d9998a4f63%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637709641578350737%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=jNPD13naHSVwm1wCfIZJVQ25paZEzd8b2ZZpSA8v2oo%3D&reserved=0> You just have to set it up for both stars in their star_job inlists and pick an appropriate exit condition.
Rob
On Tue, 19 Oct 2021 at 14:39, AbdelBassit Senhadji <sen-abd at hotmail.fr<mailto:sen-abd at hotmail.fr>> wrote:
Hi Rob!
Thanks for your suggestions. Yes for the relax routines did not work and just stopped few models after it was saying " "Maximum retries reached"
I was restarting my runs from photos, I think this is a mistake from you are saying. How to save a model file for both binaries? Any documentation available on the MESA sourceforge?
Thanks
Abdel
________________________________
From: Rob Farmer <robert.j.farmer37 at gmail.com<mailto:robert.j.farmer37 at gmail.com>>
Sent: Tuesday, October 19, 2021 5:48:01 AM
To: AbdelBassit Senhadji <sen-abd at hotmail.fr<mailto:sen-abd at hotmail.fr>>
Cc: mesa-users at lists.mesastar.org<mailto:mesa-users at lists.mesastar.org> <mesa-users at lists.mesastar.org<mailto:mesa-users at lists.mesastar.org>>
Subject: Re: [Mesa-users] Problem with a Mass loss from a binary
Hi,
Yes you can stop the model, save a model file for each star (not a photo), then rerun mesa and load those models back in but with a new initial period. I use this when I want to ignore the companion (by putting the period at 1d8 days). The other option is just to save a model then load it in a star work directory rather than a binary work directory (so you do one star at a time without a companion).
To take mass off at a constant rate, in the controls inlist for each star you can set mass_change to a chosen Mdot or use one of the relax routines to remove mass. It's not clear from your question whether this worked? or there was an error? Or something else occurred?
Rob
On Mon, 18 Oct 2021 at 15:29, AbdelBassit Senhadji via Mesa-users <mesa-users at lists.mesastar.org<mailto:mesa-users at lists.mesastar.org>> wrote:
Hi,
I was wondering if we do have in MESA a parameter than can take off the mass from a binary on a constant way.
What I am trying to do is to evolve two stars (5.5 for M1 and 3.79 for M2) with a period of 3 days. At a certain time the donor will fill it's Roche lobe and the period reached 90 days. I am also using mass loss fractions ( alpha and beta).
I tried to stop at this model and use the last model but with a different initial period ( my goal is to let the companion loose it's mass again) both stars are in a common envelope and want to take away that ...
Is it correct what I am doing ( I mean restarting the final model with a new period)? I also tried to relax both masses, used different wind scheme and trigger angular momentum without any success.
Any suggestions or help would be very appreciated!
Thanks
Abdel
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