Disk Accretion Phase: Masses

• Total mass estimates based on dust mass

  • mm continuum emission

• Range: Mdust ~ 10-3 to 10-5 MO

• These are lower limits

  • Mass in t > 1 regions underestimated
  • Large bodies not detected

• Mass estimates depend on (uncertain) grain properties

• No reliable estimates of gas content

• The total mass available for planet building may well exceed the ìminimum mass nebulaî

  • Mass comprising star passes through a disk
  • Instantaneous disk mass is a lower limit

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