Evolution of dust attenuation in star-forming galaxies with UV slope, stellar mass, and redshift out to z∼5

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Volume 711 (July 2026)

A&A, 711 (2026) A189

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Table A.1.

IRX values median-stacked in bins of β and redshift.

		−2.25 < β ≤ −1.75	−1.75 < β ≤ −1.25	−1.25 < β ≤ −0.75	−0.75 < β ≤ −0.25	−0.25 < β ≤ 0.25	0.25 < β ≤ 0.75	0.75 < β ≤ 1.25
	ℳ_lim	log(IRX)	log(IRX)	log(IRX)	log(IRX)	log(IRX)	log(IRX)	log(IRX)
		(β)	(β)	(β)	(β)	(β)	(β)	(β)
2.0 < z ≤ 2.5	9.50	$- 0 . 35_{- i n f}^{+ 0.30}$ $Mathematical equation: $ -0.35^{+0.30}_{-inf}\phantom{-} $$	$0 . 15_{- 0.35}^{+ 0.19}$ $Mathematical equation: $ 0.15^{+0.19}_{-0.35} $$	$0 . 74_{- 0.09}^{+ 0.07}$ $Mathematical equation: $ 0.74^{+0.07}_{-0.09} $$	$1 . 36_{- 0.04}^{+ 0.04}$ $Mathematical equation: $ 1.36^{+0.04}_{-0.04} $$	$1 . 91_{- 0.04}^{+ 0.03}$ $Mathematical equation: $ 1.91^{+0.03}_{-0.04} $$	$2 . 30_{- 0.03}^{+ 0.03}$ $Mathematical equation: $ 2.30^{+0.03}_{-0.03} $$	$2 . 71_{- 0.02}^{+ 0.02}$ $Mathematical equation: $ 2.71^{+0.02}_{-0.02} $$
2.0 < z ≤ 2.5	9.50	(−1.82 ± 0.01)	(−1.50 ± 0.01)	(−1.04 ± 0.01)	(−0.55 ± 0.01)	(−0.05 ± 0.10)	(0.49 ± 0.01)	(0.93 ± 0.01)
2.5 < z ≤ 3.0	9.75	$0 . 68_{- 0.17}^{+ 0.12}$ $Mathematical equation: $ 0.68^{+0.12}_{-0.17} $$	$0 . 39_{- 0.23}^{+ 0.15}$ $Mathematical equation: $ 0.39^{+0.15}_{-0.23} $$	$0 . 89_{- 0.08}^{+ 0.07}$ $Mathematical equation: $ 0.89^{+0.07}_{-0.08} $$	$1 . 51_{- 0.04}^{+ 0.04}$ $Mathematical equation: $ 1.51^{+0.04}_{-0.04} $$	$2 . 17_{- 0.04}^{+ 0.04}$ $Mathematical equation: $ 2.17^{+0.04}_{-0.04} $$	$2 . 58_{- 0.02}^{+ 0.02}$ $Mathematical equation: $ 2.58^{+0.02}_{-0.02} $$	$3 . 01_{- 0.01}^{+ 0.01}$ $Mathematical equation: $ 3.01^{+0.01}_{-0.01} $$
2.5 < z ≤ 3.0	9.75	(−1.81 ± 0.02)	(−1.47 ± 0.01)	(−1.04 ± 0.01)	(−0.55 ± 0.01)	(−0.03 ± 0.01)	(0.45 ± 0.01)	(0.93 ± 0.10)
3.0 < z ≤ 3.5	9.75	$0 . 16_{- i n f}^{+ 0.30}$ $Mathematical equation: $ 0.16^{+0.30}_{-inf} $$	$0 . 60_{- 0.16}^{+ 0.12}$ $Mathematical equation: $ 0.60^{+0.12}_{-0.16} $$	$1 . 01_{- 0.08}^{+ 0.07}$ $Mathematical equation: $ 1.01^{+0.07}_{-0.08} $$	$1 . 54_{- 0.05}^{+ 0.04}$ $Mathematical equation: $ 1.54^{+0.04}_{-0.05} $$	$2 . 27_{- 0.02}^{+ 0.02}$ $Mathematical equation: $ 2.27^{+0.02}_{-0.02} $$	$2 . 61_{- 0.02}^{+ 0.02}$ $Mathematical equation: $ 2.61^{+0.02}_{-0.02} $$	$2 . 94_{- 0.01}^{+ 0.01}$ $Mathematical equation: $ 2.94^{+0.01}_{-0.01} $$
3.0 < z ≤ 3.5	9.75	(−1.85 ± 0.01)	(−1.51 ± 0.01)	(−1.05 ± 0.01)	(−0.57 ± 0.10)	(−0.03 ± 0.10)	(0.53 ± 0.01)	(1.01 ± 0.10)
3.5 < z ≤ 4.0	10.00	$0 . 00_{- i n f}^{+ 0.30}$ $Mathematical equation: $ 0.00^{+0.30}_{-inf} $$	$0 . 92_{- 0.13}^{+ 0.10}$ $Mathematical equation: $ 0.92^{+0.10}_{-0.13} $$	$0 . 99_{- 0.14}^{+ 0.11}$ $Mathematical equation: $ 0.99^{+0.11}_{-0.14} $$	$1 . 70_{- 0.06}^{+ 0.05}$ $Mathematical equation: $ 1.70^{+0.05}_{-0.06} $$	$2 . 32_{- 0.03}^{+ 0.02}$ $Mathematical equation: $ 2.32^{+0.02}_{-0.03} $$	$2 . 50_{- 0.03}^{+ 0.03}$ $Mathematical equation: $ 2.50^{+0.03}_{-0.03} $$	$3 . 00_{- 0.02}^{+ 0.02}$ $Mathematical equation: $ 3.00^{+0.02}_{-0.02} $$
3.5 < z ≤ 4.0	10.00	(−1.85 ± 0.02)	(−1.48 ± 0.01)	(−1.04 ± 0.01)	(−0.56 ± 0.10)	(−0.02 ± 0.10)	(0.48 ± 0.14)	(0.96 ± 0.02)
4.0 < z ≤ 5.0	10.25	$1 . 02_{- 0.41}^{+ 0.21}$ $Mathematical equation: $ 1.02^{+0.21}_{-0.41} $$	$1 . 42_{- 0.11}^{+ 0.09}$ $Mathematical equation: $ 1.42^{+0.09}_{-0.11} $$	$1 . 59_{- 0.08}^{+ 0.07}$ $Mathematical equation: $ 1.59^{+0.07}_{-0.08} $$	$1 . 50_{- 0.21}^{+ 0.14}$ $Mathematical equation: $ 1.50^{+0.14}_{-0.21} $$	$2 . 06_{- 0.04}^{+ 0.04}$ $Mathematical equation: $ 2.06^{+0.04}_{-0.04} $$	$2 . 15_{- 0.07}^{+ 0.06}$ $Mathematical equation: $ 2.15^{+0.06}_{-0.07} $$	$2 . 61_{- 0.02}^{+ 0.02}$ $Mathematical equation: $ 2.61^{+0.02}_{-0.02} $$
4.0 < z ≤ 5.0	10.25	(−1.84 ± 0.10)	(−1.48 ± 0.01)	(−1.04 ± 0.02)	(−0.53 ± 0.10)	(0.00 ± 0.10)	(0.35 ± 0.02)	(0.96 ± 0.03)

Notes. Data corresponding to color points of Figure 1, with ℳ_lim being the mass-completeness limit at each redshift bin, where ℳ = log(M_*/M_⊙). Median values of β in each bin are listed in the brackets.

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