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Biology Articles » Astrobiology » Constraints on nebular dynamics and chemistry based on observations of annealed magnesium silicate grains in comets and in disks surrounding Herbig Ae/Be stars » Table

Table
- Constraints on nebular dynamics and chemistry based on observations of annealed magnesium silicate grains in comets and in disks surrounding Herbig Ae/Be stars


Table 1.   Time required to crystallize amorphous silicates

 

Annealing temperature (K) Time to crystallization
1,100 1.9 s
1,050 1.13 h
1,000 220 days
950 6976 years
900 225 million years
850 2,441 billion years


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