XPost: sci.astro.research   
   From: rdsaam@att.net   
      
   On 6/10/17 1:54 AM, Gregor Scholten wrote:   
   > "Richard D. Saam"  wrote:   
   >> In as much as galaxy and star planetary system size distributions   
   >> are different, are two different formation temperatures required   
   >> within the concept of Jeans' length?   
   >   
   > As you can read here:   
   >   
   > https://en.wikipedia.org/wiki/Jeans_instability#Jeans.27_length   
   >   
   > Jeans' length depends on T^(1/2) for constant mass density and constant G.   
   > So, for high temperatures, the length is very big, allowing only for big   
   > clouds to collaps, e.g. a proto-galactic cloud to form a galaxy, whereas   
   > for low temperatures, also smaller clouds can collaps, e.g. a proto-stellar   
   > cloud to a star.   
   >   
   >   
   What is the origin of these different   
   proto-galactic or proto-stellar cloud formation temperatures   
   in the context of the accepted   
   ubiquitous present CMBR 2.7 K temperature observation   
   that can be redshifted to any proto-galactic or proto-stellar cloud era   
   by (1+z)?   
      
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