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Table 3

Line-strength gradients as defined in Eq. (3).

Galaxy ∇ Hβ R2a ∇ Fe5270 R2a ∇ Fe5335 R2a ∇ Fe5406 R2a ∇ Mg2 R2a ∇ Mgb R2a

NGC 1132 0.0   ±   0.1 0.02 −0.6   ±   0.2 0.56 −0.4   ±   0.2 0.32 −0.3   ±   0.1 0.56 −0.05   ±   0.01 0.78 −0.6   ±   0.1 0.61
RX J0752.7+4557 1.8   ±   0.1 0.99 −0.4   ±   0.8 0.09 −1.0   ±   0.3 0.81 −0.7   ±   0.2 0.81 −0.04   ±   0.02 0.73 −1.0   ±   0.2 0.91
RX J0844.9+4258 −0.2   ±   0.2 0.24 −0.2   ±   0.1 0.43 −0.1   ±   0.4 0.02 −0.3   ±   0.1 0.69 −0.06   ±   0.01 0.91 −0.7   ±   0.1 0.95
RX J1152.6+0328 −0.4   ±   0.5 0.19 −0.7   ±   0.5 0.42 −0.1   ±   0.6 0.01 −0.2   ±   0.3 0.16 −0.06   ±   0.03 0.72 −0.9   ±   0.4 0.72
RX J1520.9+4840 −0.3   ±   0.3 0.24 −0.6   ±   0.4 0.30 −1.2   ±   0.4 0.74 −0.5   ±   0.3 0.41 −0.05   ±   0.02 0.65 −1.8   ±   1.1 0.41
RX J1548.9+0851 0.0   ±   0.2 0.01 −0.4   ±   0.2 0.49 −0.5   ±   0.3 0.30 0.0   ±   0.2 0.00 −0.04   ±   0.02 0.64 −4.9   ±   2.1 0.57

Notes.

(a)

Coefficient of determination: R2 = 1 − perfect linear relation; R2 = 0 − no linear relation.

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