ChiantiPy version 0.15.0 has been released

[Ken Dere]

Significant improvement have been made.  It is now possible to calculate spectral line intensities in wavelength/energy units of angstroms, nm, eV, or keV

Calculations of the continuum still require that the wavelengths are in angstroms.

The free-bound continuum now includes the photoionization cross sections of Verner for recombination to the ground level

The free-free continuum has been correction to use the ion charge, not the nuclear charge previously used

A new class MradLoss.mradLoss has been created.  It allows multiprocessing calculations of the radiative loss rate

The chiantirc file can now also be placed in the $HOME/.config directory

The latest software is available on github and on PyPi

[Joris Witstok]

Hi Ken,

I have a simple question about the intensityList method in ChiantiPy: when I'm trying to find the exact wavelength of Hδ (i.e. the hydrogen Balmer 6->2 transition at 4102 Å), it seems the listing stops at Hγ. Is there a maximum energy level that the software goes to that prevents it from printing these higher-level transitions?

Thanks,

Joris

[Ken Dere]

Hi Joris,

the CHIANTI database assumes the collisional population of the upper levels.  The current set of collision strengths only go up to n=5.

please feel free to ask questions

regards,

Ken

[Rona Oran]

I will be on travel until 3/26/2022. Please expect slower response times.

Rona

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[Joris Witstok]

Hi Ken,

Ok, that makes sense – despite missing the collision strengths, is there a way to access the energy differences for these transitions to work out their wavelengths?

Thanks,

Joris

[Ken Dere]

Hi Joris,

I would got the the NIST database.  They have both energies and wavelengths

Ken

[Rona Oran]

I will be on travel until 3/26/2022. Please expect slower response times.

Rona

> To view this discussion on the web visit https://groups.google.com/d/msgid/chianti/92004578-b8d9-4362-bb77-f478d4e78b27n%40googlegroups.com.