FAQ
1. How to cite METISSE?
Please cite the following paper if you are using METISSE in your work.
More details about METISSE including code capabilities are described in the following papers:
METISSE is also available at the software citation station:
2. Which interpolation method is used by METISSE?
METISSE uses monotonic interpolation with a piece-wise cubic from Steffen 1990 to estimate stellar properties between pre-computed tracks. The method ensures smooth and accurate results but requires two points below and two points above the target value; consequently, METISSE switches to linear interpolation near the boundaries where sufficient points are not available.
3. Can I use METISSE to restart the evolution of binaries?
We are working hard to add this capability, but currently METISSE cannot restart the evolution of binaries with any of the supported overlying binary codes.
4. Can METISSE interpolate in metallicity?
METISSE delibertely does not support interpolation in metallicity. However, you can choose the nearest metallicity value by adjusting Z_accuracy_limit. Please refer to the section: if the metallicity value is not present in the input grid for more details.
5. Can I add METISSE to my code?
Yes, if it uses Fortran based fitting formulae from SSE (Hurley et al. 2000) to compute stellar parameters. Your code must contain Fortran77 subroutines - namely zcnsts.f, star.f, hrdiag.f, deltat.f, mlwind.f that come with the SSE code. For details refer to the section: adding metisse to your code.
6. How can I contribute to METISSE?
We are always working on improving METISSE. If you would like to contribute by adding a new feature or creating with a bug fix, please
Fork the METISSE repository from GitHub.
Make your changes in a feature branch.
Create a pull request with your proposed changes.
7. I seek support or have to report problems with METISSE
For bug reports or issues, create an issue on GitHub. For general questions or discussion, use GitHub discussions.