Chemical abundances of PNe
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All modern determinations of chemical abundances of He/H, O/H, C/H, N/H and Ne/H in 277 galactic Planetary Nebulae have been used to update our knowledge of the chemical...
我们采用了277个银河系行星状星云(Planetary Nebulae)中He/H、O/H、C/H、N/H以及Ne/H的全部现代化学丰度测定结果,以更新我们对其化学……的认知



