Weekly Update- Week of July 18th

I have been working on initiating collapse of the Bonner Ebert Sphere. Why does a BE sphere that has no change across its boundary in density, pressure, and temperature, collapse under self gravity, WHILE a BE sphere that has a 20x greater external pressure does not? Is astrobear decreasing the density by a similar factor in the ambient to maintain an isothermal state…

NO change to external medium from the inside of the sphere. (Pout = (rho_out/rscale)*(iso_t/tempscale), rhoOut=rho_out/rscale). This causes collapse, as we saw before, because the medium is more massive than the clump. We rectified this by dividing rhoOut by a weight that decreased the ambient density.

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Now, would expect, by leaving the external density the same, and INCREASING the external pressure further, to also see collapse. I am unsure of why this is not happening. The external pressure (Pout) is now about 20x greater.

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