Nebular and auroral transitions of (Ar IV) in some planetary nebulae.
Abstract
Measurements of auroral and nebular type transitions in several planetary nebulae of high surface brightness show that currently available collisional cross sections and transition probabilities for 3p(3) configurations in Ar(3+) may be in error. The observed auroral/nebular line ratio is always larger than the predicted value, and the disagreement is further aggravated if auroral lines are weakened by telluric line absorption.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- October 1980
- DOI:
- 10.1086/158382
- Bibcode:
- 1980ApJ...241..719C
- Keywords:
-
- Argon;
- Auroral Spectroscopy;
- Forbidden Transitions;
- Planetary Nebulae;
- Absorption Spectra;
- Electron Orbitals;
- Oxygen Spectra;
- Scattering Cross Sections;
- Transition Probabilities;
- Astrophysics