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 2

JADES z > 5 photometric redshift performance metrics.

Template	Δ_{bias, z>5}	σ_{nmad, z>5}	η_f,z>5	η_c,z>5	s_z>5
	(%)	(%)	(%)	(%)	(%)
`A22`	−3.7 ± 0.2	19.3 ± 0.3	12.0 ± 0.3	${13.3}_{- 0.4}^{+ 0.3}$ $13.3_{-0.4}^{+0.3}$	98.74 ± 0.07
`BlSFH`	−3.4 ± 0.2	18.3 ± 0.3	9.2 ± 0.3	9.4 ± 0.3	${99.82}_{- 0.11}^{+ 0.08}$ $99.82_{-0.11}^{+0.08}$
`CaSFH`	−4.1 ± 0.2	19.4 ± 0.4	10.6 ± 0.4	11.8 ± 0.4	98.8 ± 0.1
`Ev3`	−4.5 ± 0.3	22.4 ± 0.4	14.7 ± 0.4	15.2 ± 0.4	99.5 ± 0.1
`L23`	−2.2 ± 0.2	17.9 ± 0.4	8.8 ± 0.3	9.1 ± 0.3	${99.72}_{- 0.09}^{+ 0.08}$ $99.72_{-0.09}^{+0.08}$
`S23`	−1.6 ± 0.2	16.0 ± 0.3	9.8 ± 0.3	9.9 ± 0.3	99.88 ± 0.05
`T22`	−1.7 ± 0.3	17.6 ± 0.4	9.7 ± 0.4	9.8 ± 0.4	99.82 ± 0.08
`TwSPS`	−8.4 ± 0.5	26.8 ± 0.5	15.8 ± 0.6	24.8 ± 0.9	${90.9}_{- 0.7}^{+ 0.6}$ $90.9_{-0.7}^{+0.6}$

Notes. Overview of template performance within the z_spec > 5 JADES sample. Specific metrics are defined above (Sect. 3.1). The JADES survey is typical of the expected performance of a conventional deep photometric survey in the high redshift regime. Initial observations include the portion of non-catastrophic estimations, where only BlSFH and L22 get >90% with a complete sample. Further, a lower bias and deviation indicate S23, T22, and L22 to be somewhat more indicative of underlying physics.

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