COSMOS-Web: Stellar mass assembly in relation to dark matter halos across 0.2 < z < 12 of cosmic history

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Volume 695 (March 2025)

A&A, 695 (2025) A20

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Table 1.

Photo-z performance estimated using high-quality spectroscopic redshifts with > 97% confidence.

Mag range	σ_NMAD^(a)	Outliers ^(b)	Bias ^(c)
17 < m_F444W < 23	0.011	1.44%	0.007
23 < m_F444W < 24	0.014	2.05%	0.005
24 < m_F444W < 25	0.015	3.94%	0.007
25 < m_F444W < 26	0.020	9.00%	0.005
26 < m_F444W < 28	0.030	9.52%	0.009

Color range	σ_NMAD^(a)	Outliers ^(b)	Bias ^(c)

m_F277W − m_F444W < −0.25	0.010	1.47%	0.001
−0.25 < m_F277W − m_F444W < 0.25	0.015	1.74%	0.006
m_F277W − m_F444W > 0.25	0.035	7.28%	0.014
NUVrJ Quiescent ^(d)	0.008	2.26%	0.006
NUVrJ Star forming ^(d)	0.013	1.95%	0.007

Notes.

^(a)

σ_NMAD = 1.48 × median[(|Δz − median(Δz)|)/(1 + z_spec)]; Δz = z_phot − z_spec.

^(b)

Outliers = |Δz|> 0.15(1 + z_spec).

^(c)

Bias = median(Δz).

^(d)

Quiescent are selected using the standard NUVrJ diagram (NUV − r) > 3 × (r − J)+1 and (NUV − r) > 3.1.

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