PPT Slide

Galaxy Formation And Evolution

MJ = (4?mHn/3)[?vs2/G(? + P/c2)]3/2

Consequences of the Jeans Mass:

• Similar development occurs

for a disturbance

with M ? 1012 MO…

• For M ?1 012 MO the

development is different…

• Its amplitude grows until

T ? 107 K, then becomes

a sound wave until

T ? 105.5 K…..

Figure from Bowers and Deeming

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