Period
2006 - 2006
Number
1
Co-Authors
Chemical abundances for Hf 2-2, a planetary nebula with the strongest-known heavy-element recombination lines (2006)
Liu, X.-W., Barlow, M.J., Zhang, Y., ...
We present high-quality optical spectroscopic observations of the planetary nebula (PN) Hf 2-2. The spectrum exhibits many prominent optical recombination lines (ORLs) from heavy-element ions....