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Table 3.
Logarithmic gradients of the surface brightness and metallicity and age profiles in three regions: R ≤ Rtr1, Rtr1 < R < Rtr2, and R ≥ Rtr2.
| Parameter | sR < Rtr1 | sRtr1 < R < Rtr2 | sR > Rtr2 | |
|---|---|---|---|---|
| PGC007748 | ||||
| μr | 3.32 | 3.40 | 7.37 | |
| Z | −0.07 | −0.43 | −0.69 | |
| Age | −0.06 | 0.005 | −0.05 | |
| PGC015524 | ||||
| μr | 2.46 | 3.21 | 6.19 | |
| Z | −0.05 | −0.32 | −2.04 | |
| Age | −2.1 × 10−6 | −0.04 | −0.22 | |
| PGC049940 | ||||
| μr | 3.631 | 4.649 | 5.711 | |
| Z | −0.03 | −0.38 | – | |
| Age | −0.03 | −0.26 | – | |
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