Enhanced strong-lensing model of MACS J0138.0–2155 based on new JWST and VLT/MUSE observations

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Table 1.

Results from the fit of the stellar kinematic measurements from G25, as described in Sect. 3.

	With the BCG		Without the BCG

Parameter	Best-fit value	Marginalised value	Best-fit value	Marginalised value
σ₀^ref [ $km s^{- 1}$ $\rm km~s^{-1}$ ]	329	$329_{- 28}^{+ 29}$ $329^{+29}_{-28}$	377	$394_{- 80}^{+ 95}$ $394^{+95}_{-80}$
Δσ₀^ref [ $km s^{- 1}$ $\rm km~s^{-1}$ ]	26	$26_{- 5}^{+ 7}$ $26^{+7}_{-5}$	23	$27_{- 5}^{+ 7}$ $27^{+7}_{-5}$
α	0.21	$0 . 21_{- 0.03}^{+ 0.03}$ $0.21^{+0.03}_{-0.03}$	0.25	$0 . 26_{- 0.06}^{+ 0.06}$ $0.26^{+0.06}_{-0.06}$

Notes. Best-fit and marginalised parameter values with the associated 1σ uncertainties for a reference galaxy, assumed to be the BCG, with a total magnitude value F160W = 15.30.

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