The AGN nature of strong C III] emitters in the early Universe with JWST

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Volume 709 (May 2026)

A&A, 709 (2026) A46

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Table 1.

Properties of the C III] emitters with a broad Hα component.

ID	L_Hα, BLR	log(M_BH/M_⊙)_Hα	log(L_Edd/erg s⁻¹)	log(L_bol/erg s⁻¹)	λ_Edd	log(M_∗/M_⊙)
	[10⁴² erg s⁻¹]	[dex]	[dex]	[dex]		[dex]
CEERS-397	$3 . 31_{- 1.03}^{+ 2.20}$ $Mathematical equation: $ 3.31_{-1.03}^{+2.20} $$	7.18	45.29	43.67 ± 0.05	0.024	8.3 ± 0.1
JADES-38147	$7 . 17_{- 0.66}^{+ 0.63}$ $Mathematical equation: $ 7.17_{-0.66}^{+0.63} $$	7.84	45.96	43.0 ± 0.2	0.001	$7 . 9_{- 0.1}^{+ 0.5}$ $Mathematical equation: $ 7.9_{-0.1}^{+0.5} $$
JADES-167639	$0 . 95_{- 0.14}^{+ 0.14}$ $Mathematical equation: $ 0.95_{-0.14}^{+0.14} $$	7.70	45.82	43.1 ± 0.1	0.002	8.28 ± 0.04
RUBIES-16915	$1 . 44_{- 0.42}^{+ 0.48}$ $Mathematical equation: $ 1.44_{-0.42}^{+0.48} $$	7.13	45.24	43.85 ± 0.04	0.04	8.95 ± 0.02
RUBIES-174752	$1 . 67_{- 0.35}^{+ 0.48}$ $Mathematical equation: $ 1.67_{-0.35}^{+0.48} $$	7.43	45.54	43.2 ± 0.1	0.005	$8 . 2_{- 0.3}^{+ 0.2}$ $Mathematical equation: $ 8.2_{-0.3}^{+0.2} $$
RUBIES-37427	$2 . 00_{- 0.43}^{+ 0.38}$ $Mathematical equation: $ 2.00_{-0.43}^{+0.38} $$	7.42	45.53	43.2 ± 0.2	0.004	$8 . 5_{- 0.1}^{+ 0.2}$ $Mathematical equation: $ 8.5_{-0.1}^{+0.2} $$
CAPERS-52661	$8 . 78_{- 0.52}^{+ 0.53}$ $Mathematical equation: $ 8.78_{-0.52}^{+0.53} $$	7.81	45.92	43.2 ± 0.1	0.002	9.2 ± 0.1
CAPERS-9244	$0 . 93_{- 0.15}^{+ 0.20}$ $Mathematical equation: $ 0.93_{-0.15}^{+0.20} $$	7.42	45.54	42.91 ± 0.05	0.002	7.8 ± 0.1
CEERS-1334	$4 . 07_{- 0.36}^{+ 0.38}$ $Mathematical equation: $ 4.07_{-0.36}^{+0.38} $$	7.76	45.88	43.2 ± 0.1	0.002	8.42 ± 0.1

COSMOS-61234	$11 . 45_{- 0.24}^{+ 0.23}$ $Mathematical equation: $ 11.45_{-0.24}^{+0.23} $$	8.03	46.15	43.27 ± 0.05	0.001	N/A
GDS-13704	$1 . 14_{- 0.06}^{+ 0.06}$ $Mathematical equation: $ 1.14_{-0.06}^{+0.06} $$	7.46	45.57	42.6 ± 0.1	0.001	N/A
RUBIES-49140	$59 . 24_{- 0.71}^{+ 0.75}$ $Mathematical equation: $ 59.24_{-0.71}^{+0.75} $$	8.50	46.62	43.1 ± 0.1	0.0003	N/A
UNCOVER-41225	$2 . 18_{- 0.23}^{+ 0.23}$ $Mathematical equation: $ 2.18_{-0.23}^{+0.23} $$	7.51	45.63	43.2 ± 0.1	0.003	N/A
CAPERS-35805	$10 . 53_{- 0.30}^{+ 0.30}$ $Mathematical equation: $ 10.53_{-0.30}^{+0.30} $$	8.13	46.25	43.2 ± 0.1	0.001	N/A

Notes. Hα luminosity, BH mass, Eddington luminosity, bolometric luminosity, Eddington ratio, and stellar mass for the 14 galaxies exhibiting broad Hα emission. We adopt a typical 0.3 dex uncertainty for BH masses and Eddington luminosities, accounting for calibration systematics. The five galaxies below the dashed line are classified as LRDs, and their stellar masses are not reported.

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