Comments on: Stoking the Fire https://briankoberlein.com/2015/04/22/stoking-the-fire/ Brian Koberlein Thu, 21 Feb 2019 15:22:39 +0000 hourly 1 https://wordpress.org/?v=5.0.3 By: Bernard RAMBERT https://briankoberlein.com/2015/04/22/stoking-the-fire/#comment-4359 Sat, 30 Jul 2016 22:51:19 +0000 https://briankoberlein.com/?p=4722#comment-4359 There should be no difference on a redshift scale between the temperature of the CMB (or its “CHROMINANCE”) if the photons are passing through a super void because, what counts only is the difference between the grave potential (equal to c^2) of the CMB at the point of emission (very low 13 billions years ago) versus its potential at the point of arrival on earth (grave potential much higher now), whatever the path followed by the photons and whatever the universe rate of expansion in between both events. But there will be a change in the number of CMB photons per unit of time and per unit of surface coming from a specific direction because super void will act as anti-lensing structure thus leading to the hereof decrease of photons, hence decrease of the CMB “LUMINANCE”. The effect of super voids on luminance is very sensitive : the larger the super void, the lower the luminance. Ups and lows in the potential structure of the universe will act just like up and lows at the water surface of a swimming pool causing to unevenly lighten the floor of the swimming pool. That is just what the CMB looks like by now.

]]> By: Kevin Lesh https://briankoberlein.com/2015/04/22/stoking-the-fire/#comment-2255 Wed, 22 Apr 2015 22:13:52 +0000 https://briankoberlein.com/?p=4722#comment-2255 Where can I learn more about this? I would like to understand how matter at 2.7K can be distinguished from the CMB which looks like blackbody radiation at the same temperature? I’m missing something.

Thanks for the great site.

]]> By: Brian Koberlein https://briankoberlein.com/2015/04/22/stoking-the-fire/#comment-2254 Wed, 22 Apr 2015 18:35:53 +0000 https://briankoberlein.com/?p=4722#comment-2254 They add to what we observe, and are known as the foreground effect. When we measure the CMB we subtract the foreground effects to get the actual CMB. There are ways we can tel the difference, such as the type of spectrum we observe.

]]> By: Kevin Lesh https://briankoberlein.com/2015/04/22/stoking-the-fire/#comment-2253 Wed, 22 Apr 2015 17:37:10 +0000 https://briankoberlein.com/?p=4722#comment-2253 What I don’t understand is how thermal radiation from matter, ie, galaxies and superclusters, does not add to the CMB. When looking at very small perturbations in the CMB how is this taken into account? I have personally measured the temperature of the moon by measuring the microwave noise emitted and would expect anything that is above 0 degrees K to add to the CMB?

]]> By: Arturo Gutierrez https://briankoberlein.com/2015/04/22/stoking-the-fire/#comment-2252 Wed, 22 Apr 2015 14:34:57 +0000 https://briankoberlein.com/?p=4722#comment-2252 fascinating! 😀

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