ALMA Lensing Cluster Survey: A spectral stacking analysis of [C II] in lensed z ∼ 6 galaxies

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Volume 652 (August 2021)

A&A, 652 (2021) A128

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Table 4.

Continuum stacking results, using 3σ upper limits corrected for magnification.

		T = 35 K			T = 45 K
Sample name	rms ^(a)	L_FIR^(b)	SFR ^(c)	M_dust^(d)	L_FIR^(b)	SFR ^(c)	M_dust^(d)
	[μJy beam⁻¹]	[10¹⁰ L_⊙]	[M_⊙ yr⁻¹]	[10⁶ M_⊙]	[10¹⁰ L_⊙]	[M_⊙ yr⁻¹]	[10⁶ M_⊙]
Full sample, mean	15	< 0.5	< 0.5	< 1.7	< 1.1	< 1.2	< 0.9
Full sample, median	17	< 1.3	< 1.4	< 4.2	< 2.8	< 3.0	< 2.2

Good z sub-sample, mean	14	< 0.4	< 0.4	< 1.2	< 0.8	< 0.9	< 0.6
Good z sub-sample, median	16	< 1.1	< 1.2	< 3.7	< 2.5	< 2.7	< 2.0

High-SFR sub-sample, mean	25	< 1.5	< 1.6	< 4.8	< 3.3	< 3.5	< 2.5
High-SFR sub-sample, median	26	< 2.3	< 2.4	< 7.6	< 5.1	< 5.5	< 4.0

SFR+z sub-sample, mean	28	< 1.4	< 1.5	< 4.8	< 3.2	< 3.4	< 2.5
SFR+z sub-sample, median	35	< 2.4	< 2.6	< 8.1	< 5.5	< 5.9	< 4.3

Notes.

^(a)

rms value in the continuum map;

^(b)

Upper limit on far-infrared luminosity corrected for the magnification and the effect of the CMB;

^(c)

Upper limit on SFR estimated from the L_FIR;

^(d)

Upper limit on molecular gas mass estimated from the L_[CII].

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