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Figure 1: The logarithm of the number of C stars versus the total absolute V-magnitude of the parent galaxy. The line represents the least-square fit to the points. Filled dots are galaxies with no current star formation. |
| Open with DEXTER | |
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Figure 2: Two examples of different C star colour distributions. The left panels represents M 31 and the right ones corresponds to NGC 3109. |
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Figure 3: The mean absolute I-magnitude of C stars is plotted versus the total absolute V-magnitude of the parent galaxy. Black dots mark galaxies with over than 100 C stars. The line represents the average magnitude of the black dots. |
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Figure 4: The mean absolute I-magnitude of C stars versus the adopted metallicity of the parent galaxy (as listed in Table 1). The straight line represents the least-square fit excluding And II and VII. |
| Open with DEXTER | |