Resolving the molecular gas emission of the z ∼ 2.5–2.8 starburst galaxies SPT 0125-47 and SPT 2134-50

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Volume 705 (January 2026)

A&A, 705 (2026) A81

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Table 2.

Line properties from our observations.

Source	z	$S_{v, peak}^{a, g}$ $S_{v, \rm peak}^{a,g}$	FWHM $_{peak}^{b}$ $_{\mathrm{peak}}^{b}$	$I_{mol}^{c, g}$ $I_{\mathrm{mol}}^{c,g}$	$L_{mol}^{d, g}$ $L_{\mathrm{mol}}^{d,g}$	L_mol^{′, e, g}	μ_{CO(3 − 2)}^f
		[mJy]	[km s⁻¹]	[Jy km s⁻¹]	[10⁸ L_⊙]	[10¹¹ K km s⁻¹]
SPT 0125-47	2.5148	5.0 ± 2.5	206 ± 73	2.1 ± 1.0	0.96 ± 0.50	0.73 ± 0.35	10.7 ± 0.002
		3.1 ± 1.0	310 ± 212
SPT 2134-50	2.7799	2.0 ± 0.3	394 ± 128	1.2 ± 0.4	0.62 ± 0.22	0.47 ± 0.17	7.6 ± 0.002
		0.9 ± 0.4	348 ± 271

Notes. ^(a)Specific intensity of the two peaks comprising the double Gaussian fit. ^(b)FWHM of the two components comprising the double Gaussian fit. ^(c)Intensity of the entire line. ^(d)Luminosity of the entire line expressed in L_⊙. ^(e)Luminosity of the entire line expressed in K km s⁻¹ pc⁻². ^(f)Magnification factor for the entire line. ^(g)Corrected for lensing magnification.

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