• Re: General Cosmology: universal expansion as an illusion of changing s

    From Lou@21:1/5 to Eric Flesch on Wed Jun 1 06:09:35 2022
    On Thu 26/05/2022 at 00:49 UTC, Eric Flesch wrote:
    On 23 May 2022 08:48:49 +0100 (BST), Lou
    wrote:
    If galaxies are said to spread apart with expansion
    then galaxy distribution observed now,...and reversed 13 billion
    years should give us an image of galaxies that should be much
    closer together in the Hubble deep field.

    Remembering that we see back 13 billion years in every direction, your
    point boils down to that we should see those early galaxies as larger
    on the sky. But their surface brightness is very faint at the
    distance so we would be seeing their brightest cores only. I'm not
    defending the BB model, but I'm pretty sure it accomodates your point.

    However, way back in 1993, Nilsson et al (ApJ 413,453) showed in their
    Figure 5 that the apparent size of radio lobes decreases linearly with >redshift, as though the universe is endless flat space. Nilsson
    commented about this: "The crucial assumption here is that the linear >size-redshift correlation, if it exists, can be neglected". To my
    knowledge, this linear correlation has not been refuted
    observationally to the present day.

    Unfortunately PHellberger refused to allow my following reply to you
    Recently on sci.Astro.research. I don’t have my original comment but
    the following below is a new version based on the censored post:

    Could you clarify the quote in your post regarding Nilsson et al.
    I looked up the original paper and can’t understand the contradiction
    in your post copied above. It seems Nilsson does observe a linear
    Redshift correlation...but then he or you say it can be neglected
    because in fact there is a linear redshift correlation? That seems Contradictory to me. I assumed you mean there is a linear
    redshift correlation?
    The next part of my post speculated on what a linear redshift distance correlation would be in a non expanding universe. But I’m not sure if you argue
    for a non expanding universe or not. I assume you do.
    Anyways if z=1 equates to a doubling of wavelength
    in a non expanding universe at a specific distance X. Then in a non expanding universe a doubling again of wavelength from z=1 must equate to a
    doubling again of redshifted wavelength at a distance of 2X.
    Which is z=3

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