[Mesa-users] missing kappa files

[TUCHOW, NOAH WOLFE]

Hello,

I'm currently trying to run a MESA model for a 1 solar mass star using the Asplund 2009 abundances and opacities. I have the following lines in my inlist:

kappa_file_prefix = 'OP_a09'
kappa_lowT_prefix = 'lowT_fa05_a09p'

and when I try to make the model I receive the error message:

"NOTICE: missing kap data /data/nxt5109/mesa-r10398/data/kap_data/OP_a09_z0.0_x0.0.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.

File: ../private/load_kap.f90, Line:  247”

I am running the r10398 release of MESA, and when I look in the mesa-r10398/data/kap_data/ folder, I find that no files exist with the "OP_a09" prefix. There are however files with the prefix “OP_a09_nans_removed_by_hand”. How can I access the OP_a09 opacities? Is it as simple as changing  "kappa_file_prefix = 'OP_a09_nans_removed_by_hand' "?

Have other people been able to get the OP_a09 opacities working? I noticed past emails to the mailing list for earlier versions of MESA have had similar issues. The documentation for r10398 says that 'OP_a09' is a valid argument for kappa_file_prefix. Should this be changed?

Thanks,
Noah Tuchow


Noah Tuchow
Penn State University
Department of Astronomy and Astrophysics
532C Davey Lab
University Park, PA 16802
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