[mesa-users] WD models with low temperature

[chenhl]

Dear all,

I want to make some ONe WD models with central temperature Tc ~ 1.0e7 K.
But I always fail to cool the WD down.

I try to do this with two steps.
First, I use make_o_ne_wd test case to make a WD model with a mass I need.
Then I use wd_cool test case to reduce the central temperature.  I always
fail at the second
step with following error.

----------------------------------------------------------------------------
                                                    dt
8.7052562366518861D-14
                                     min_timestep_limit
1.0000000000000000D-13

 stopping because of convergence problems dt < min_timestep_limit




 terminated evolution: convergence problems


                  runtime, retries, backups, steps
15.275467          2.000000       188        69      2693
       2693   8.551489  1.065E+05 -12.382713   5.451730   1.253481
0.000000   0.000000   0.000000   0.919403   0.000000  28.486602   3126
188
 -19.325921   7.496896  -0.246400   3.879481   5.942448 -99.000000
1.253481   0.000000   0.373003   0.080597   0.014044   6.309162     25
69
 2.3535E+07  24.633374   4.565573   5.439943   7.114711  -6.300953
1.253481   0.030127   0.508866   0.000000  9.860E-01 -0.833E+02
convergence

Fri Apr 15 18:24:37 CST 2016

******************************************************************
failed to create cool.mod when running inlist_wd_cool2
******************************************************************

The version of MESA I used is 4906. The inlist files I used are attached.

Is there anyone have experience on this?  Thanks!

Best wishes,
Hailiang
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