Can the Kappa-distributed Electron Energies Account for the Intensity Ratios of O ii Lines in Photoionized Gaseous Nebulae?

A vexing puzzle in the study of planetary nebulae and H ii regions is that the plasma diagnostic results based on collisionally excited lines systematically differ from those based on recombination lines. A fairly speculative interpretation is the presence of nonthermal electrons with the so-called...

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Veröffentlicht in:	The Astrophysical journal 2020-08, Vol.899 (1), p.33
Hauptverfasser:	Lin, Bao-Zhi, Zhang, Yong
Format:	Artikel
Sprache:	eng
Schlagworte:	Approximation Astrophysics Atomic spectroscopy Diagnostic systems Electron energy H II regions Hydrogen Hydrogen recombinations Nebulae Photoionization Planetary nebulae Plasma astrophysics
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