- #1

Cerenkov

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https://courses.lumenlearning.com/astronomy/chapter/the-inflationary-universe/

http://abyss.uoregon.edu/~js/ast123/lectures/lec18.html

Hello.

The diagrams I've linked to are comparisons between the Standard Hot Big Bang and Inflationary cosmological models. I'm curious about the Y axis, which gives the scale of the radius of the universe, and where the lines of the two different cosmological models originate from that axis.

The Inflationary line appears to originate between 10

^{-50}and 10

^{-60}meters. At first glance this appears to be smaller than the Planck scale, which is quoted here...

https://newt.phys.unsw.edu.au/einsteinlight/jw/module6_Planck.htm

...as being 10

^{-35}meters.

Could someone please help me understand if there's a real disparity here or if there's something I'm just not seeing? Thanks.

Also, the Standard (HBB) line appears to originate from the Y axis at about 10-5 meters.

Could I please be informed (in basic and easy to understand terms) as to why this is so.

Thanks in advance,

Cerenkov.Oops!

I forgot to mention that I'm trying to gain a better insight into how GR works and was wondering if these diagrams can help.