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Table 2

Star formation parameters derived for our sample of galaxies.

Galaxy  ⟨ SFR ⟩  b100 b500 b1G b14G f1G f4G f14G  ⟨ [Fe/H] ⟩ 
(10-2   M yr-1) (dex)

ESO443-09, KK170 0.08 ± 0.07 6.48 3.02 0.91 1.01 0.11 0.06 0.83  −1.46 ± 0.14
ESO381-18 0.35 ± 0.26 1.71 0.93 1.91 0.95 0.13 0.11 0.76  −1.40 ± 0.13
ESO444-78, UGCA365 0.63 ± 0.36 0.66 0.48 0.40 1.07 0.03 0.11 0.86  −1.37 ± 0.21
IC 4247, ESO444-34 0.61 ± 0.45 1.04 1.06 0.70 1.07 0.05 0.32 0.63  −1.37 ± 0.21
ESO381-20 0.70 ± 0.48 4.36 3.41 1.76 0.92 0.15 0.06 0.79  −1.45 ± 0.17

Notes. The columns are the following: Col. (1): name of the galaxy; (2): average SFR over the whole lifetime; (3): b100; (4): b500; (5): b1G; (6): b14G; (7): f1G; (8): f4G; (9): f14G; and (10): average metallicity over the whole lifetime. The b parameter is the ratio of star formation rate over the indicated time period (0.1, 0.5, 1 and from 1 to 14 Gyr respectively) to the average star formation over the whole lifetime; the f parameter is the fraction of stars born in a certain time interval (0 − 1, 1 − 4 and 4 − 14 Gyr). In a hypothetical galaxy with constant star formation rate, f1G = 0.07, f4G = 0.36 and f14G = 0.57.

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