Chemo-dynamics of the stellar component of the Sculptor dwarf galaxy - I. Observed properties

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Volume 692 (December 2024)

A&A, 692 (2024) A195

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Table C.1

Best-fit parameters for the global properties of Sculptor’s stellar component in the case of assuming one population and a linear metallicity gradient.

Set	m [dex/deg]	ℳ₀	σ_ℳ	𝒱 [km s⁻¹]	σ_𝒱 [km s⁻¹]	R_h [deg]
Uncorrected CC	$- {0.69}_{- 0.06}^{+ 0.06}$ $\[-0.69_{-0.06}^{+0.06}\]$	$- {1.64}_{- 0.02}^{+ 0.02}$ $\[-1.64_{-0.02}^{+0.02}\]$	${0.399}_{- 0.008}^{+ 0.009}$ $\[0.399_{-0.008}^{+0.009}\]$	${111.1}_{- 0.3}^{+ 0.3}$ $\[111.1_{-0.3}^{+0.3}\]$	${9.5}_{- 0.2}^{+ 0.2}$ $\[9.5_{-0.2}^{+0.2}\]$	${0.207}_{- 0.005}^{+ 0.005}$ $\[0.207_{-0.005}^{+0.005}\]$
Corrected CC	$- {0.69}_{- 0.06}^{+ 0.06}$ $\[-0.69_{-0.06}^{+0.06}\]$	$- {1.64}_{- 0.02}^{+ 0.02}$ $\[-1.64_{-0.02}^{+0.02}\]$	${0.399}_{- 0.008}^{+ 0.008}$ $\[0.399_{-0.008}^{+0.008}\]$	${111.1}_{- 0.3}^{+ 0.3}$ $\[111.1_{-0.3}^{+0.3}\]$	${9.5}_{- 0.2}^{+ 0.2}$ $\[9.5_{-0.2}^{+0.2}\]$	${0.207}_{- 0.005}^{+ 0.005}$ $\[0.207_{-0.005}^{+0.005}\]$
Corrected MLM	$- {0.69}_{- 0.06}^{+ 0.06}$ $\[-0.69_{-0.06}^{+0.06}\]$	$- {1.64}_{- 0.02}^{+ 0.02}$ $\[-1.64_{-0.02}^{+0.02}\]$	${0.400}_{- 0.008}^{+ 0.009}$ $\[0.400_{-0.008}^{+0.009}\]$	${111.2}_{- 0.3}^{+ 0.3}$ $\[111.2_{-0.3}^{+0.3}\]$	${9.8}_{- 0.2}^{+ 0.2}$ $\[9.8_{-0.2}^{+0.2}\]$	${0.207}_{- 0.005}^{+ 0.005}$ $\[0.207_{-0.005}^{+0.005}\]$

Notes. Col. 1 indicates the set of velocities used; Col. 2 indicates the metallicity gradient; Col 3 lists the mean metallicity at the center of Sculptor; Col. 4 the metallicity dispersion; Col. 5 lists the l.o.s. systemic velocity. Col. 6 the v_los dispersion; Col. 7 indicates the half light radius assuming a Plummer number density profile; finally, Col. 8 lists the ΔBIC value with respect the single population model (to be compared to the values in Tabs C.2 and C.3

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