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astro-ph2004★ 1 cited
Breit-Pauli energy levels, transition probabilities, and lifetimes for 3d^5 levels in Fe IV of astrophysical interest
Charlotte Froese Fischer, Robert H. Rubin
Energy levels, lifetimes, and transition probabilities for transitions between computed levels of 3d^5 of Fe IV are reported. The E2 and M1 transition probabilities are compared wi…
astro-ph2004
Flux ratio [Ne V] 14.3/24.3 as a test of collision strengths
R. H. Rubin
From ISO [Ne V] 14.3/24.3 micron line flux ratios, we find that 10 out of 20 planetary nebulae (PNs) have measured ratios below the low-electron density (N_e) theoretical predicted…