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Table · dataset · 2005

Electron impact excitation of Al XIII

Listed in IVOA Registry (Virtual Observatory)

Energy levels, radiative rates, collision strengths, and effective collision strengths for all transitions up to and including the n=5 levels of Al XIII have been computed in the jj coupling scheme including relativistic effects.

Description

All partial waves with angular momentum J<=60 have been included, and resonances have been resolved in a fine energy grid in the threshold region. Collision strengths are tabulated at energies above thresholds in the range 170.0<=E<=300.0Ryd, and results for effective collision strengths, obtained after integrating the collision strengths over a Maxwellian distribution of electron velocities, are tabulated over a wide temperature range of 4.4<=logT_e_<=6.8K.

The importance of including relativistic effects in a calculation is disc ussed in comparison with the earlier available non-relativistic results.

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Provenance · 1 source records, 7 field assertions
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IVOA Registry (Virtual Observatory)ivo://cds.vizier/j/a+a/432/115115 d agoJSON v1
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concepts[field].local:field:astronomymapping · IVOA Registryconnector:ivoa_registry@1.0.0
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