SMC west halo: a slice of the galaxy that is being tidally stripped? - Star clusters trace age and metallicity gradients

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Table 6

Age and metallicity gradients for WH clusters.

Coefficient	Literature	Our results	All WH

Age gradients

linear (Gyr)	−2.2 ± 2.6	−2.7 ± 1.8	−3.7 ± 1.8
angular (Gyr/°)	2.5 ± 0.8	1.9 ± 0.6	2.6 ± 0.6
r ²	0.5	0.5	0.5
σ (Gyr)	2.5	1.1	2.1

Metallicity gradients

linear (dex)	−0.62 ± 0.27	−0.01 ± 0.59	−0.44 ± 0.27
angular (dex/°)	−0.13 ± 0.08	−0.34 ± 0.21	−0.19 ± 0.09
r²	0.3	0.2	0.2
σ (dex)	0.23	0.37	0.31

Notes. Results from the fits presented in Fig. 11. Columns named “literature”, “our results”, and “all WH” refer to the blue, red, and black lines in Fig. 11.

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