Changes between Version 2 and Version 3 of u/GasPhiBE


Ignore:
Timestamp:
10/04/12 12:41:19 (12 years ago)
Author:
Erica Kaminski
Comment:

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  • u/GasPhiBE

    v2 v3  
    1010
    1111{{{#!latex
    12 4\over3
     12{4\over3} \pi \rho ({r^3-Rbe^3})
    1313
    1414}}}
     15
     16Where rho is the uniform ambient density, and we are approximating the box as a sphere. Note, when these quantities are in computational units, one converts to mass in cgs, as defined in the BE problem module, by multiplying this equation by Mscale found in scales.data.
     17
     18By this method, I found the mass in the light ambient medium to be:
     19{{{#!latex
     20M = {0.0007 * {4 \over 3} \pi ({15.4^3 -1 })} = 10.7 * Mscale = 4.77 * 10^36 g = 2,248 Solar Masses
     21
     22}}}
     23
     24That is, Mamb~14Mbe.
     25
     26Since in the matched case, the density becomes 0.07, Mamb=100*Mamb_light~1,400 Mbe. Or, in astronomical units, Mamb_matched=224,800 Solar Mass!
     27