Re: sum of atomic spectra == 9000K black body?

Posted by Frank Wimberly-2 on May 12, 2020; 10:31pm
URL: http://friam.383.s1.nabble.com/sum-of-atomic-spectra-9000K-black-body-tp7595886p7595937.html

When I worked at the PIttsburgh Supercomputing Center, a division of CMU, we had a user who produced a visualization of the first few milliseconds after the big bang.  How can they do that?

Didn't Penzias and Wilson win the Nobel Prize for showing that the background radiation caused by that event is what radio telescopes hear/see that they can't otherwise account for?

On Tue, May 12, 2020 at 3:59 PM Roger Critchlow <[hidden email]> wrote:

Jon --

It's a mystery to me.  I believe they are simply counting the number of spectral lines at each wave number and plotting the histogram.  And the link is between the now and the very long ago.  And I believe there's no reason to expect this histogram to have any particular distribution at all?  It's just a weird result.

-- rec --

On Tue, May 12, 2020 at 1:10 PM Jon Zingale <[hidden email]> wrote:

Roger,

I get the sense that this is a link between the very small

and the very large, but I am far from being a physicist.

Could you say more about this result?

Jon

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