Changes between Version 19 and Version 20 of u/erica/radtimescales
- Timestamp:
- 03/30/16 15:48:57 (9 years ago)
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u/erica/radtimescales
v19 v20 105 105 [[latex($t_{ff}\approx\frac{1}{2}\frac{1}{\sqrt{G\rho}}$)]] 106 106 107 where rho is the mean density of the gas .107 where rho is the mean density of the gas, calculated above. This gives, 108 108 109 To check if the gas is Jeans unstable, 109 [[latex($\boxed{t_{ff}\approx 7.6e+12 ~s}$)]] 110 111 112 That this value is very nearly the sound crossing time shows that a pre-stellar core is marginally jeans unstable.