TDCOSMO - XXI. Accurate stellar velocity dispersions of the SL2S lens sample and the fundamental plane of the lensing mass

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Volume 705 (January 2026)

A&A, 705 (2026) A13

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Table 1.

BIC-weighted uncertainties for the whole SL2S sample and subsamples.

Sample	$⟨ δ \bar{σ} / \bar{σ} ⟩$ $\langle\delta \bar{\sigma}/\bar{\sigma}\rangle$	$⟨ Δ \bar{σ} / \bar{σ} ⟩$ $\langle\Delta \bar{\sigma}/\bar{\sigma}\rangle$	$\sqrt{{⟨ C_{i, j} \bar{σ} / \bar{σ_{i}} \bar{σ_{j}} ⟩}_{i \neq j}}$ $\sqrt{\langle C_{i,j}\bar{\sigma}/\bar{\sigma_i}\bar{\sigma_j}\rangle_{i\neq j}}$	$⟨ Δ_{B} \bar{σ} / \bar{σ} ⟩$ $\langle\Delta_B \bar{\sigma}/\bar{\sigma}\rangle$	$\sqrt{{⟨ C_{B, i, j} \bar{σ} / \bar{σ_{i}} \bar{σ_{j}} ⟩}_{i \neq j}}$ $\sqrt{\langle C_{B,i,j}\bar{\sigma}/\bar{\sigma_i}\bar{\sigma_j}\rangle_{i\neq j}}$	Indo-US	MILES	Num. of Obj.
SL2S S/N > 20	3.47%	0.66%	0.22%	2.14%	0.72%	0.05	0.95	15
SL2S 13< S/N ≤ 20	4.60%	1.07%	0.65%	1.70%	1.04%	0.27	0.73	18
SL2S S/N ≤ 13	7.40%	1.68%	0.90%	3.07%	1.65%	0.81	0.19	14
SL2S All	5.05%	1.38%	0.67%	2.22%	1.08%	0.26	0.74	47

SL2S-LRIS S/N > 20	3.73%	1.39%	1.07%	2.38%	1.83%	0.78	0.22	8
SL2S-LRIS 13< S/N ≤ 20	4.68%	1.42%	0.97%	2.09%	1.42%	0.37	0.63	13
SL2S-LRIS S/N ≤ 13	6.90%	0.91%	0.43%	2.73%	1.30%	0.94	0.06	10
SL2S-LRIS All	5.13%	1.63%	1.02%	2.36%	1.48%	0.62	0.38	31

SL2S-Other S/N > 20	3.16%	0.003%	0.001%	1.97%	0.45%	0.001	0.999	7
SL2S-Other 13< S/N ≤ 20	4.38%	0.40%	0.04%	0.71%	0.06%	0.19	0.81	5
SL2S-Other S/N ≤ 13	8.68 %	2.49%	1.55%	3.69%	2.30%	0.35	0.65	4
SL2S-Other All	4.94%	0.10%	0.02%	1.96%	0.35%	0.001	0.999	16

Notes. We report the BIC-weighted average statistical uncertainty, the average systematic uncertainty (both Bessel corrected and uncorrected), and the average amplitude of the off-diagonal terms of the covariance matrix between elements of the sample (both Bessel corrected and uncorrected) for the whole SL2S sample and subsamples grouped by instrument and S/N. The BIC-determined weights given to the two libraries for each subsample and the number of galaxies in each subsample are also provided.

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