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Table 2

Stellar age measurements.

Galaxy Age1 Age2 Age3 Adopted age
(Gyr) (Gyr) (Gyr) (Gyr)

YN720 3.4 3.4
YN821 5.2 ± 1.5 7.2 5.2 ± 1.5
N1052 14.5 ± 4.2 14.5 ± 4.2
YN1380 4.4 ± 0.7 4.4 ± 0.7
YN1404 5.9 5.9
N3115 8.4 ± 1.1 8.4 ± 1.1
N3379 8.2 ± 1.1 9.3 8.2 ± 1.1
YN3585 3.1 3.1
YN3923 3.3 ± 0.8
YN4125 5.0
N4278 12.5 ± 1.2 10.7 12.5 ± 1.2
N4365 7.9 ± 1.2 7.9 ± 1.2
N4374 9.8 ± 3.4 11.3 ± 1.3 11.8 9.8 ± 3.4
YN4382 1.6 1.6
N4472 9.6 ± 1.2 8.5 9.6 ± 1.2
YN4552 6.0 ± 1.4 12.4 ± 1.2 9.6 6.0 ± 1.4
N4636 13.5 ± 3.6 10.3 ± 1.3 13.5 ± 3.6
N4649 16.9 ± 2.3 11.0 16.9 ± 2.3
N4697 10.0 ± 1.4 5.9 ± 1.2 8.2 10.0 ± 1.4
YN5866 1.8 1.8

Notes. Stellar ages are listed according to priority: 1 – Annibali et al. (2007), 2 – Sánchez-Blázquez et al. (2006), 3 – Terlevich & Forbes (2002). Ages for NGC 3923 and NGC 4125 are from Thomas et al. (2005) and Schweizer & Seitzer (1992) respectively. Galaxies marked by “Y” are classified as young galaxies in the Sect. 5.2, the remaining galaxies are classified as old.

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