Large population of ALMA galaxies at z > 6 with very high [O III] 88 m to [C II] 158 m flux ratios: evidence of extremely high ionization parameter or PDR deficit?

Harikane, Y.; Ouchi, M.; Inoue, A.K.; Matsuoka, Y.; Tamura, Y.; Bakx, T.; ... ; Vallini, L. (2020)

Article / Letter to editor

• All authors: Harikane, Y.; Ouchi, M.; Inoue, A.K.; Matsuoka, Y.; Tamura, Y.; Bakx, T.; Fujimoto, S.; Moriwaki, K.; Ono, Y.; Nagao, T.; Tadaki, K.i.; Kojima, T.; Shibuya, T.; Egami, E.; Ferrara, A.; Gallerani, S.; Hashimoto, T.; Kohno, K.; Matsuda, Y.; Matsuo, H.; Pallottini, A.; Sugahara, Y.; Vallini, L.
• Date: 2020-06-17
• Journal: The Astrophysical Journal
• Volume: 896
• Issue: 2
• Pages: 93
• DOI: doi:10.3847/1538-4357/ab94bd
• Link: https://ui.adsabs.harvard.edu/abs/2020ApJ...896...93H