Table 1
Spectral parameters of 8 meteorites used in this study before and after irradiation.
| Before irradiation | After irradiation | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Name | Type | R0.55 | R2.45/R0.75 | AC (μm) | BD (%) | R0.55 | R2.45/R0.75 | AC (μm) | BD (%) |
| Xingyang | H6 | 0.1692 | 0.937 | 0.943; 1.938 | 29.72; 16.02 | 0.1 | 1.283 | 0.943; 1.938 | 21.39; 11.21 |
| Kheneg Ljouâd | LL5/6 | 0.174 | 0.836 | 1.029; 1.97 | 30.98; 3.99 | 0.1135 | 1.082 | 0.98; 1.938 | 19.78; 3.67 |
| Norton County | Aub | 0.5193 | 0.866 | 0.89 | 1.8 | 0.2514 | 0.984 | 0.89 | 1.4 |
| Allende | CV3 | 0.0832 | 0.911 | 1.055; 2.092 | 5.66; 5.66 | 0.0707 | 1.240 | 1.037; 2.106 | 1.71; 2.78 |
| Shanshan 002 | CO3 | 0.072 | 0.911 | 1.039; 2.068 | 2.81; 2.82 | 0.061 | 1.032 | – | – |
| Abee | EH4 | 0.0729 | 1.221 | – | – | 0.0809 | 1.564 | – | – |
| Indarch | EH4 | 0.0614 | 1.216 | – | – | 0.0702 | 1.304 | – | – |
| Murchison | CM2 | 0.0487 | 1.011 | 0.677 | 1.95 | 0.0506 | 0.032 | 0.965 | 3.1 |
Notes. R0.55 is absolute reflectance at 0.55 μm. R2.45/R0.75 is the ratio of absolute reflectance at 2.45 μm to that at 0.75 μm, which can reflect the near-infrared slope. AC is absorption center. BD is band depth. The “–” means that no absorption was found (for Abee and Indarch) or the absorption is too weak to calculate (for irradiated Shanshan 002).
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