Circumstellar Dust Disk Calculator

 

Stellar Properties:                                  

  Luminosity:  LSun

  Temperature:  K

  Mass:  MSun

  Age: Myr
 


 

 

 

Dust Properties:

  Grain Radius:
     specify:  microns
     use calculated blowout size

  Grain Density:
     1g/cc  - icy grains
     2.5 g/cc - dusty silicate grains
     3.5 g/cc - dusty silicate grains

  Grain Albedo:
     0.1 - silicate grains
     0.3 - icy grains
     specify albedo:

  Grain Emissivity:
     blackbody
     graybody
     ISM

  Dust Temperature:  K

Disk Properties:

  Infrared excess f =LIR/Lstar:

  Disk Inner Radius : AU

  Disk Outer Radius : AU

  Disk Surface Density Power Law Exponent:
     0
     -1.5
     specify:

  Calculate Grain Lifetimes at:
    at the inner radius of the disk
    at the outer radius of the disk
    specify radius: AU

Calculable Values: 
    (click on bullet to view equation)

Grain Blowout Size = microns

Mean Grain Size =  microns

Blowout Grain Migration Time = years

PR Drag Lifetime: = years

Grain Collision Lifetime years

Face-on Surface Density at Disk Inner Boundary = m2 of grain cross section per m2 of disk

Rdust (Tdust) = AU

Total Dust Mass > MEarth

Mass of Parent Bodies > MEarth

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