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I'm interested in the history tables other PF members are getting as they try out Jorrie's online tabulator. What's your current favorite? So this is to invite folks to use the LaTex feature to get a version of your table you can print in a post in this thread. Which values of the Hubbletimes do you prefer using? These days I'm always using 14.4 and 17.3 Gy, with S=3400 marking matter-radiation equality.
Your table can be short or long. Sometimes a very brief table can be effective in showing some historical feature clearly. Here's an example where I set "steps" = 1 and checked the box to include S=1, the exact present.
So then I just ticked the "LaTex" button, said "calculate" and copypasted the LaTex expression that resulted into this post:
[tex]{\begin{array}{|r|r|r|r|r|r|r|} \hline S=z+1&a=1/S&T (Gy)&T_{Hub}(Gy)&D (Gly)&D_{then}(Gly)&D_{hor}(Gly)&D_{par}(Gly)\\ \hline1090.000&0.000917&0.000373&0.000628&45.332&0.042&0.057&0.001\\ \hline1.000&1.000000&13.787206&14.399932&0.000&0.000&16.472&46.279\\ \hline0.040&25.000000&68.366857&17.299636&-15.809&-395.235&17.300&1551.841\\ \hline\end{array}}[/tex]
It's a brief history of the universe from year 373,000 to year 68 billion
It shows the recession speed (back then) of the matter that emitted the CMB radiation we are now receiving--namely the speed was 0.042/0.000628 times the speed of light.
And it shows the present day recession speed of that same matter, namely 45.33/14.4 times the speed of light.
It also shows both the (cosmic event) horizon distance and the Hubble radius converging in the remote future to the same 17.3 billion lightyear length.
You might construct a sample history that includes other and more interesting features and one not limited to three lines. I'd like to see what results folks have come up with, and hope they will share.
Your table can be short or long. Sometimes a very brief table can be effective in showing some historical feature clearly. Here's an example where I set "steps" = 1 and checked the box to include S=1, the exact present.
So then I just ticked the "LaTex" button, said "calculate" and copypasted the LaTex expression that resulted into this post:
[tex]{\begin{array}{|r|r|r|r|r|r|r|} \hline S=z+1&a=1/S&T (Gy)&T_{Hub}(Gy)&D (Gly)&D_{then}(Gly)&D_{hor}(Gly)&D_{par}(Gly)\\ \hline1090.000&0.000917&0.000373&0.000628&45.332&0.042&0.057&0.001\\ \hline1.000&1.000000&13.787206&14.399932&0.000&0.000&16.472&46.279\\ \hline0.040&25.000000&68.366857&17.299636&-15.809&-395.235&17.300&1551.841\\ \hline\end{array}}[/tex]
It's a brief history of the universe from year 373,000 to year 68 billion
It shows the recession speed (back then) of the matter that emitted the CMB radiation we are now receiving--namely the speed was 0.042/0.000628 times the speed of light.
And it shows the present day recession speed of that same matter, namely 45.33/14.4 times the speed of light.
It also shows both the (cosmic event) horizon distance and the Hubble radius converging in the remote future to the same 17.3 billion lightyear length.
You might construct a sample history that includes other and more interesting features and one not limited to three lines. I'd like to see what results folks have come up with, and hope they will share.
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