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CECILIA: Ultradeep Rest-optical Spectra of Faint Galaxies at Cosmic Noon

  • Authors: Menelaos Raptis, Ryan F. Trainor, Allison L. Strom, Gwen C. Rudie, Noah S. J. Rogers, Charles C. Steidel, Michael V. Maseda, Caroline von Raesfeld, Nathalie A. Korhonen Cuestas

Menelaos Raptis et al 2025 The Astrophysical Journal Letters 989 .

  • Provider: AAS Journals

Caption: Figure 9.

The N2-BPT predictions from the Cloudy photoionization models are shown, using input spectra from BPASS stellar populations. The pink lines represent tracks of fixed ﹩{\mathrm{log}}\,U﹩, where higher ﹩{\mathrm{log}}\,U﹩ values result in higher O3 ratios. The model points are color-coded by O/H as indicated by the color bar. We overplot the CECILIA NB sample (pink points), fLBG sources (pink squares), and SDSS z ∼ 0 galaxies (gray contours).

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