Open Access
Table 2
Sample sets used to validate our algorithm.
| Sample name | Number of spectra | Sample definition |
|---|---|---|
| CSTAR_XPM | 83 028 | CSTAR (a) sample with xp_sampled_mean spectra |
| CSTAR_XPM_G | 8288 | Golden sample (b) of CSTAR_XPM, the vast majority of which are carbon stars |
| CSTAR_XPM_nonG | 74 740 | Non-golden sample of CSTAR_XPM, most of which are non-carbon stars |
| Positive sample | 8176 | Carbon stars selected from CSTAR_XPM_G, used for model training |
| Negative sample | 8556 | Non-carbon stars selected from CSTAR_XPM_nonG, used for model training |
Notes. (a)386 936 candidate carbon stars received the “CSTAR” tag (Gaia Collaboration 2023). (b)15 740 golden sample carbon stars from CSTAR.
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