Performance of photometric template fitting for ultra-high-redshift galaxies

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Volume 697 (May 2025)

A&A, 697 (2025) A160

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Table 5

JADES z > 0.1 photometric redshift performance metrics.

`Template`	Δ_bias,z>0.1	σ_{nmad, z>0.1}	η_f,z>0.1	η_c,z>0.1	s_z>0.1
	(%)	(%)	(%)	(%)	(%)
`A22`	−2.3 ± 0.2	${37.9}_{- 0.7}^{+ 0.8}$ $37.9_{-0.7}^{+0.8}$	21.0 ± 0.3	21.5 ± 0.3	${99.48}_{- 0.05}^{+ 0.04}$ $99.48_{-0.05}^{+0.04}$
`BlSFH`	−3.7 ± 0.3	${34.4}_{- 0.8}^{+ 0.9}$ $34.4_{-0.8}^{+0.9}$	${18.7}_{- 0.4}^{+ 0.5}$ $18.7_{-0.4}^{+0.5}$	${19.4}_{- 0.4}^{+ 0.5}$ $19.4_{-0.4}^{+0.5}$	${99.29}_{- 0.09}^{+ 0.06}$ $99.29_{-0.09}^{+0.06}$
`CaSFH`	−4.9 ± 0.3	${34.0}_{- 0.8}^{+ 0.9}$ $34.0_{-0.8}^{+0.9}$	21.5 ± 0.5	22.5 ± 0.5	${98.97}_{- 0.1}^{+ 0.07}$ $98.97_{-0.1}^{+0.07}$
`Ev3`	−5.7 ± 0.3	39.6 ± 0.8	25.8 ± 0.4	26.9 ± 0.4	${98.89}_{- 0.09}^{+ 0.08}$ $98.89_{-0.09}^{+0.08}$
`L23`	−4.7 ± 0.3	38.4 ± 0.8	${23.5}_{- 0.4}^{+ 0.5}$ $23.5_{-0.4}^{+0.5}$	24.6 ± 0.5	98.9 ± 0.1
`T22`	$- {1.0}_{- 0.4}^{+ 0.3}$ $-1.0_{-0.4}^{+0.3}$	39 ± 1	${21.4}_{- 0.4}^{+ 0.5}$ $21.4_{-0.4}^{+0.5}$	21.9 ± 0.5	99.46 ± 0.06
`TwSPS`	−12.1 ± 0.4	${42.9}_{- 0.9}^{+ 1.0}$ $42.9_{-0.9}^{+1.0}$	32.1 ± 0.5	${36.6}_{- 0.5}^{+ 0.6}$ $36.6_{-0.5}^{+0.6}$	95.5 ± 0.2

Notes. Overview of template performance in the all-redshift (z_spec>0.1) JADES sample. Specific metrics are defined above (Sect. 3.1). With the main purpose of the “all-regime” sample being the selection of a high-redshift sample, it is clear that BlSFH performs best. The sets T22 and S23 are not included in this analysis because they require pre-selection of high-redshift candidates.

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