[mesa-users] Status of OP_a09 tables?

[Warrick Ball]

Hi all,

I just tried to run a model in r7624 using

    kappa_file_prefix = 'OP_a09'

which is listed as one of the options in star_job.defaults.  However, I 
get the error message


  NOTICE: missing kap data /home/astro84/wball/mesa/7624/data/kap_data/OP_a09_z0m0_x00.data

  Please check the validity of the kap_prefix string for this file.

  If it is okay, you may need to install new kap data.
  To do that, remove the directory mesa/data/kap_data,
  and rerun the mesa ./install script.

Sure enough, the data isn't there.  There's nothing starting just with 
"OP_a09"...

...but a lot of files starting with "OP_a09_nans_removed_by_hand"!  Now, 
just to be sure, I followed the instruction to remove mesa/data/kap_data 
and reinstalled.  This didn't make any difference.

I vaguely recall there being a discussion about the OP_a09 tables being 
buggy, and a quick search in the archive took me to

http://sourceforge.net/p/mesa/mailman/message/31646111/

which suggests that there was some bug in the OP data, which was 
temporarily fixed by "interpolating by eye", which is presumably the 
reason for the "nans_removed_by_hand".  But that was more than 18 months 
ago, and I haven't managed to find anything newer.  (I apologize if I've 
missed something!)

So, in short, what's up with these tables?  Are they currently usable?  I 
ask for a comparison I'm making when modelling Sun-like solar-like 
oscillators, if there's some rho-T regime in which the tables are okay.

Cheers,
Warrick






------------
Warrick Ball
Postdoc, Institut für Astrophysik Göttingen
wball at astro.physik.uni-goettingen.de
+49 (0) 551 39 5069