Extreme N-emitters at high redshift: Possible signatures of supermassive stars and globular cluster or black hole formation in action

Open Access

Fig. 9.

Observed and predicted abundance ratios of N/C as a function of O/H for the six N-emitters and comparison samples from the literature. Observed data are shown using the same symbols as in Fig. 6, with model predictions given the same line styles as in Fig. 6.

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