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A Large Sample of Extremely Metal-poor Galaxies at z < 1 Identified from the DESI Early Data

  • Authors: Hu Zou, Jipeng Sui, Amélie Saintonge, Dirk Scholte, John Moustakas, Malgorzata Siudek, Arjun Dey, Stephanie Juneau, Weijian Guo, Rebecca Canning, J. Aguilar, S. Ahlen, D. Brooks, T. Claybaugh, K. Dawson, A. de la Macorra, P. Doel, J. E. Forero-Romero, S. Gontcho A Gontcho, K. Honscheid, M. Landriau, L. Le Guillou, M. Manera, A. Meisner, R. Miquel, Jundan Nie, C. Poppett, M. Rezaie, G. Rossi, E. Sanchez, M. Schubnell, H. Seo, G. Tarlé, Zhimin Zhou, Siwei Zou

Hu Zou et al 2024 The Astrophysical Journal 961 .

  • Provider: AAS Journals

Caption: Figure 11.

Left: BPT diagnostic diagram of [O III]λ5007/Hβ vs. [O II]/Hβ for all [O III]λ4363-detected galaxies (gray), confirmed XMPGs (blue), and XMPG candidates (green). The solid curve is the demarcation line as defined in Equation (3) to separate AGNs from star-forming galaxies. Right: MEx diagram for the same galaxies. The solid and dashed lines are the demarcation curves for starbursts (lower left) and AGNs (upper right), respectively, which come from Juneau et al. (2014).

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