Chemical abundances for Hf 2-2
收藏B2FIND2026-03-19 收录
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https://b2find.eudat.eu/dataset/8c761056-dcc6-54df-a916-9b5582841d91
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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...
