Table C.2.
Separation efficiency of galaxies with and without bulges across parameter spaces defined by various morphological indicators.
| Gini | M20 | C | A | S | M | I | D | n | reff | |
|---|---|---|---|---|---|---|---|---|---|---|
| Gini | 0.034 | 0.453 | 0.311 | 0.119 | 0.213 | 0.157 | 0.185 | 0.255 | 0.242 | 0.223 |
| M20 | 0.388 | 0.422 | 0.422 | 0.397 | 0.397 | 0.393 | 0.412 | 0.459 | 0.456 | |
| C | 0.177 | 0.179 | 0.238 | 0.213 | 0.189 | 0.275 | 0.208 | 0.275 | ||
| A | 0.111 | 0.219 | 0.192 | 0.165 | 0.311 | 0.194 | 0.312 | |||
| S | 0.208 | 0.238 | 0.232 | 0.305 | 0.240 | 0.302 | ||||
| M | 0.153 | 0.185 | 0.258 | 0.205 | 0.353 | |||||
| I | 0.153 | 0.260 | 0.192 | 0.379 | ||||||
| D | 0.246 | 0.275 | 0.366 | |||||||
| n | 0.191 | 0.265 | ||||||||
| reff | 0.205 |
Notes. The values represent the effectiveness of each parameter combination, where higher values indicate better separation. The combination of Gini and M20 provides a prominent separation of bulges and nonbulges, consistent with its frequent use in morphological studies. M20 alone also demonstrates strong discriminatory power. Additionally, the combination of reff and intensity-based statistics performs comparably to the Gini and M20 indicators.
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