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Table 5
Summary of the dust composition constraints.
| Dust species | KIC 1255b | KOI-2700b |
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| Iron (Fe) | too volatile | dust temperature too high |
| Silicon monoxide (SiO) | too volatile | required grain size implausibly large |
| Cryst. fayalite (Fe2SiO4) | too volatile | consistent with observed tail length |
| Cryst. enstatite (MgSiO3) | required grain size implausibly large | too refractory |
| Cryst. forsterite (Mg2SiO4) | required grain size implausibly large | too refractory |
| Quartz (SiO2) | required grain size implausibly large | too refractory |
| Corundum (Al2O3) | consistent with observed tail length | consistent with observed tail length |
| Silicon carbide (SiC) | too refractory | too refractory |
| Graphite (C) | too refractory | too refractory |
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