Study of the ∼50 kpc circumgalactic environment around the merger system J2057–0030 at z ∼ 4.6 using ALMA

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Table 1.

Spectral measurements.

Comp.	Cont. flux	ν	Cont. size	S/N_Cont	L_[C II]	FWHM_[C II]	ν_0,[C II]	[CII] size	L_[C II]	Δd	Δv	S/N_[C II]
	[mJy]	[GHz]	[″]		[Jy km s⁻¹]	[km s⁻¹]	[GHz]	[″]	[10⁹ L_⊙]	[kpc]	[km s⁻¹]
QSO	2.44 ± 0.24	346.52	0.76 ± 0.04 × 0.68 ± 0.03	10	3.79 ± 0.24	344.9 ± 49.6	334.45	1.14 ± 0.05 × 0.92 ± 0.05	2.59 ± 0.16	...	...	16
DSFG	1.48 ± 0.33	346.52	1.48 ± 0.3 × 1.0 ± 0.2	4.5	1.58 ± 0.22	342.6 ± 68.8	334.53	1.28 ± 0.13 × 0.34 ± 0.03	1.08 ± 0.15	19.4	68.1	7
C1 ^(a)^(b)	0.29 ± 0.22	346.52	< 0.64 × 0.58	1	1.24 ± 0.16	238.2 ± 51.8	334.5	< 0.64 × 0.58	0.85 ± 0.11	4.5	39.5	8
C2 ^(a)^(b)	0.23 ± 0.18	346.52	< 0.82 × 0.76	1	0.72 ± 0.13	256.7 ± 70.2	334.48	< 0.82 × 0.76	0.49 ± 0.09	8.5	24.5	6
C3 ^(a)^(b)	0.49 ± 0.21	346.52	< 1.01 × 0.82	2	0.52 ± 0.1	81.8 ± 24.4	334.51	< 1.01 × 0.82	0.35 ± 0.07	11.4	51.3	5
C4 ^(b)	0.38 ± 0.25	346.52	< 0.88 × 0.74	1.5	1.3 ± 0.16	180.8 ± 58.2	334.33	0.88 ± 0.09 × 0.74 ± 0.07	0.89 ± 0.11	27.8	111.9	5
S0 ^(b)^(c)	0.52 ± 0.25	346.52	< 0.92 × 0.68	2	1.24 ± 0.22	378.6 ± 148.0	334.34	0.92 ± 0.14 × 0.68 ± 0.1	0.85 ± 0.15	5.8	249.7	6
S1 ^(b)^(c)	0.04 ± 0.3	346.52	< 1.32 × 0.88	0	1.57 ± 0.28	421.8 ± 182.8	334.42	1.32 ± 0.26 × 0.88 ± 0.18	1.07 ± 0.15	10.2	184.0	6

Notes. Columns: (1) Component; (2) Continuum fluxes (in mJy); (3) Continuum frequency (in GHz); (4) Beam deconvolved sizes of the continuum emitting region (in arcseconds); (6) [CII] integrated fluxes (in Jy km s⁻¹); (7) Full width at half maximum (FWHM) of the Gaussian fit of the [CII] 1D spectra (in km s⁻¹); (8) Observed central frequency of the [CII] line (in GHz); (9) Beam deconvolved sizes of the [CII] emitting region (in arcseconds); (10) [CII] luminosities (in L_⊙); (11) Distances between the sources and the QSO host, calculated assuming the redshifts of the QSO hosts’ [CII] emission lines (in kpc); (12) Velocity offsets with respect to the QSO host, calculated from the central frequencies of the [CII] emission lines (in km s⁻¹); (13) Signal-to-noise ratio of the [CII] emission.

^(a)

[CII] unresolved sources, sizes have upper limits only.

^(b)

Continuum unresolved sources, sizes have upper limits only.

^(c)

Distances in Col. (11) are measured relative to the DSFG.

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