MIRI spectrophotometry of GN-z11: Detection and nature of an optical red continuum component

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Table 2.

Modelled fluxes derived from the SED fitting.

Line/Filter	Observed	Single pop	Mixed pop.	Mix.+ty1 (CIG.)	Mix.+AGN (SYN.)	Mix.+ty2 (CIG.)
Hβ	< 44	22 ± 1	24 ± 0	22 ± 1	26 ± 4	22 ± 1
[O III]λ4960	< 44	44 ± 1	52 ± 1	44 ± 1	43 ± 10	46 ± 1
[O III]λ5008	136 ± 14	132 ± 4	156 ± 4	133 ± 3	128 ± 30	136 ± 1
Hα	68 ± 9	63 ± 2	70 ± 2	61 ± 1	63 ± 10^†	63 ± 1
F560W	368 ± 26	326 ± 4	382 ± 7	335 ± 5	357 ± 50	360 ± 2
F770W	274 ± 20	176 ± 1	202 ± 5	185 ± 5	261 ± 30	254 ± 5
F1000W	249 ± 77	111 ± 3	130 ± 6	126 ± 6	274 ± 40	285 ± 11

Notes. The acronyms CIG. and SYN. stand for CIGALE and SYNTHESIZER-AGN (see Sects. 3.3, 4.2 and 4.3). Units are in 10⁻¹⁹ erg s⁻¹ cm⁻² and nanojanskys for the lines and photometric points, respectively. ^†: We derived a 1 × 10⁻¹⁸ erg s⁻¹ cm⁻² flux for the broad component in Hα.

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