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Reading: Jones et al. (2000)
1. Fig. 4 shows a schematic time-temperature plot for chondrules and CAIs for the 12 hour period immediately after their formation. Why is it important to know the time-temperature histories of these objects? Based on what you know about chondrules and CAIs, extend the diagram both to the left and right, i.e., show schematic pre-heating temperatures and temperatures long after maximum heating.
2. Why do nebular environments with high dust/gas ratios seem likely for the formation of chondrules and CAIs?
3. The authors spend a great deal of time describing both the observational constraints for chondrules and CAIs, and the nebular shock and (especially) x-wind models that they favor for their formation. Assess the extent to which the constraints they discuss are satisfied by each of these models.