Extra (auroral) lines to include in future grids

[christopherlovell]

Duplicate here on synthesizer main issue page

Thanks to @LGalaxiesPublicRelease for raising.

The [OIII]4363 auroral line is present in current grids, however this only allows us to semi-directly calculate the electron temperatures of other ions. Therefore, it would be great to include the following other auroral lines in future, if possible, please!

[NII]5755
[SIII]6312
[OII]7320
[OII]7330

Cheers,
Rob Yates

[christopherlovell]

The linelist generation is all handled here: https://github.com/synthesizer-project/grid-generation/tree/main/src/synthesizer_grids/cloudy/create_linelist

I think you just need to add the lines you need (in the correct cloudy format) here: https://github.com/synthesizer-project/grid-generation/blob/main/src/synthesizer_grids/cloudy/create_linelist/extra_lines.dat

Of course, we will have to re-run some of the fiducial grids to provide these, just let us know which ones in particular you'd be interested in and we should be able to do this relatively simply. Or, you can run your own grid creation - this should also be trivial, but will require setting up cloudy