摘要: ▪ Abstract Observations of suspected planet-forming disks provide estimates protoplanetary disk masses, surface temperatures, and the rate at which mass is infalling onto disks. Analyses primitive meteorites comets their components constrain solar nebula's temperature locations times where those were formed. Theoretical models undergoing accretion from an cloud envelope predict temperatures in good agreement with these constraints: a moderately warm (500–1500 K) inner disk, surrounded by cool (50–150 outer disk. These have important implications for depletion volatiles Solar System, mechanisms evolution, orbital distances terrestrial gas giant planets form.
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