ALMA view of RX J1131-1231: Sub-kpc CO (2-1) mapping of a molecular disk in a lensed star-forming quasar host galaxy

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Table 2

Parameters of the best lens model for RX J1131-1231, derived from the integrated CO (2-1) data.

	κ₀	q	θ	Δ X	ΔY	γ	Γ	Γ_θ
	[arcsec]		[deg]	[arcsec]	[arcsec]			[deg]
Main lens	1.70 ± 0.09	0.767 ± 0.014	111 ± 1	−0.83 ± 0.01	0.28 ± 0.14	2.04 ± 0.03	0.084 ± 0.016	93 ± 3
Satellite	0.19 ± 0.05	0.890 ± 0.081	1 ± 22	−0.07 ± 0.10	0.74 ± 0.14	≡ 2	≡ 0	≡ 0

Notes. The position of the main lens is given with respect to the ALMA phase-tracking centre; the position of the satellite is given with respect to the centre of the main lens.

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