[mesa-users] HELP. Critical rotation of accretor in binary system

[王江涛]

Dear Pablo
Thank you for your advice, I modification my inlist_project. and show in here:



initial_period_in_days = 2.0d0



do_initial_orbit_sync_1 = .false.

do_initial_orbit_sync_2 = .false.
and plots of surface rotational velocities against time for my evolution data.
In fact, I want to achieve mass loss duo to critical rotation,when accertor star
 Vsurf=Vcrit~Vkepler
centrifugal force> gravitational force
so mass ejection that accertor spin  down, but donor star mass transfer to accertor star surface and it spin up to 
Vsurf=Vcrit~Vkepler。This phenomena is my hope,.
would you please help me,how should do it?

Attached is my  inlist_project, inlist1 and inlist2 from my binary/work file and some history information plot.

cheer!
                                  Wang JT




At 2015-09-14 12:23:24, "Pablo Marchant" <pamarca at gmail.com> wrote:


Wang, I don't see any reason why your accretor should not spin up from your inlists. At the moment I can't run your inlists to see what is the problem so you need to be more specific. As I asked before, do you have mass transfer happening? Even if you don't, I doubt your star remains at 200 km/s as you say, because you have activated the initial orbital synchronization.

Cant you send some plots of surface rotational velocities against time, and of mass transfer rates? And also an advice,   only include in your inlists parameters that you change from the default value. That makes things clearer both for you and anyone else reading them.

Cheers!

Am 14.09.2015 5:19 vorm. schrieb "王江涛" <wangjt151 at 163.com>:

hi!
Thank your for your help! 
Attached is my  inlist_project, inlist1 and inlist2 from my binary/work file.
Wang JT






At 2015-09-13 00:13:33, "Pablo Marchant" <pamarca at gmail.com> wrote:


Hi. Please send a copy of your inlists to see what is happening precisely. Do you actually have mass transfer happening at the point you expect the star to spin-up?

Am 12.09.2015 4:41 vorm. schrieb "王江涛" <wangjt151 at 163.com>:

Dear professor
  I want to achieve critical rotation of accretor. In the inlist_project, set
     
      mass_transfer_alpha = 0.0d0
      mass_transfer_beta = 0.0d0
      mass_transfer_delta = 0.8d0
      mass_transfer_gamma = 2.0d0


     do_j_accretion = .true.
     do_tidal_sync = .true.
 but the accretor rotation keep 200km/s at equator. 
Could you please tell me,
How to achieve critical rotation of accretor?
Thank you for your help!


WangJT




 


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