The ALMA-CRISTAL survey - Discovery of a 15 kpc-long gas plume in a z = 4.54 Lyman-α blob

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Table 1.

Global properties of the two main galaxies in the J1000+0234 system.

Property	J1000+0234-North		CRISTAL-01a

	Value	Ref.	Value	Ref.
[C II] redshift	4.5391	1	4.5537	2
log(M_stars) [M_⊙]	10.14 ± 0.08	3	9.16 ± 0.07	3
log(M_dyn) [M_⊙]	11.15 ± 0.19	1	–	–
UV slope (β_UV)	$- 1 . 01_{- 0.32}^{+ 0.39}$ $-1.01_{-0.32}^{+0.39}$	3	$- 2 . 04_{- 0.11}^{+ 0.12}$ $-2.04_{-0.11}^{+0.12}$	3
SFR_UV [M_⊙ yr⁻¹]	52.6 ± 8.5	3	147.6 ± 7.4	3
SFR_IR [M_⊙ yr⁻¹]	$440_{- 320}^{+ 1200}$ $440_{-320}^{+1200}$	3	56 ± 35 ^(a)	–
SFR_tot [M_⊙ yr⁻¹]	$490_{- 320}^{+ 1200}$ $490_{-320}^{+1200}$	3	204 ± 35	–

Notes.

^(a)

Estimated from the IRX-β_UV relation (Meurer et al. 1999) assuming an SMC attenuation law (Bouchet et al. 1985).

(1) Fraternali et al. (2021); (2) Béthermin et al. (2020); (3) GG18.

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