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Fe/Ni ratio in the Ant Nebula Mz 3

Y. Zhang·X. -W. Liu
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Abstract

We have analyzed the [Fe II] and [Ni II] emission lines in the bipolar planetary nebula Mz~3. We find that the [Fe II] and [Ni II] lines arise exclusively from the central regions. Fluorescence excitation in the formation process of these lines is negligible for this low-excitation nebula. From the [Fe II]/[Ni II] ratio, we obtain a higher Fe/Ni abundance ratio with respect to the solar value. The current result provides further supporting evidence for Mz 3 as a symbiotic Mira.

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Y. Zhang, X. -W. Liu. 2006-05-06. Fe/Ni ratio in the Ant Nebula Mz 3. https://doi.org/10.1017/s1743921306004170

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