Dynamical modelling and the origin of gas turbulence in z ∼ 4.5 galaxies

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Volume 687 (July 2024)

A&A, 687 (2024) A35

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Table 3.

Gas and dust continuum surface brightness.

Object		I_e, gas	I_e, dust	R_eff	ϵ	PA
		(mJy beam⁻¹ km s⁻¹)	(mJy beam⁻¹)	(kpc)		(deg)
BRI1335−0417	Gas	44.9 $_{- 0.6}^{+ 0.7}$ $^{+0.7}_{-0.6}$	–	3.06 $_{- 0.04}^{+ 0.03}$ $^{+0.03}_{-0.04}$	0.20 $_{- 0.02}^{+ 0.01}$ $^{+0.01}_{-0.02}$	6 $_{- 3}^{+ 2}$ $^{+2}_{-3}$
	Dust	–	0.97 ± 0.07	1.69 $_{- 0.06}^{+ 0.08}$ $^{+0.08}_{-0.06}$	0.22 ± 0.02	−2 $_{- 2}^{+ 3}$ $^{+3}_{-2}$
J081740	Gas	9.9 $_{- 0.4}^{+ 0.5}$ $^{+0.5}_{-0.4}$	–	3.2 $_{- 0.1}^{+ 0.2}$ $^{+0.2}_{-0.1}$	0.42 ± 0.03	125 ± 3
	Dust	–	0.17 ± 0.01	1.79 $_{- 0.10}^{+ 0.09}$ $^{+0.09}_{-0.10}$	0.56 ± 0.04	109 $_{- 2}^{+ 3}$ $^{+3}_{-2}$
SGP38326−1	Gas	6.8 ± 0.2	–	3.2 ± 0.1	0.24 ± 0.02	83 ± 3
	Dust	–	0.75 ± 0.01	1.29 ± 0.01	0.04 ± 0.01	−49 ± 8
SGP38326−2	Gas	6.3 ± 0.3	–	2.4 ± 0.1	0.50 ± 0.03	85 ± 2
	Dust	–	0.57 ± 0.01	1.08 ± 0.02	0.25 ± 0.02	112 ± 3

Notes. Best-fit parameters of the 2D Sérsic fits of the gas and dust distributions: surface brightness at the effective radius (I_e); effective radius (R_eff); ellipticity (ϵ); and position angle (PA). All maps were fitted with a Sérsic index (n) fixed to 1, except for the dust emission of BRI1335−0417 where n was left free and led to n = 2.6 ± 0.1.

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