[mesa-users] Data from solar calibration

[Jean-Claude Passy]

Thanks Bill for the quick response.

All the best,

JC

On Mar 26, 2015, at 3:00 AM, Bill Paxton <paxton at kitp.ucsb.edu> wrote:

> 
> 
> On Mar 25, 2015, at 5:20 PM, Jean-Claude Passy wrote:
> 
>> Hi everyone,
>> 
>> I am working on the solar calibration and I am wondering where the target value and the uncertainty for the sound speed profile come from
> 
> Hi JC,
> 
> Those were selected by me as a way to include the sound speed profile in the choice of a solar model.  The value I picked for sigma is just to give a reasonable weight to the sound speed term relative to the others --- make sigma too large and the sound speed profile rms has no effect on the chi^2; make sigma too small and sound speed will completely dominate the chi^2.   goldilocks.   feel free to change it.  feed free to drop the sound speed from the chi^2.
> 
> Cheers,
> Bill
> 
>