Evidence that the key assumption made in discovery of dark energy is in error

Re:Evidence that the key assumption made in discovery of dar... by mannykannot on Tuesday January 07, 2020 @09:24AM (#21980129)

I am confused, as a lot of sources (e.g. [1]) make a distinction between doppler and cosmological redshift. When you say "change our relativistic reference frame to match a distant galaxy's", do you mean as that frame was when the photon was emitted, or as it is when it is detected here? (if that is a well-defined distinction under relativity?)

[1] https://calgary.rasc.ca/redshift.htm

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Re:Evidence that the key assumption made in discovery of dar... by bananabreakfast on Tuesday January 07, 2020 @02:23PM (#21983633)

So that source draws a line between cosmological redshift and doppler redshift that is so misleading I'd say it's wrong. They are in fact equivalent [1] and basically just depend on your reference frame.

Check out the wikipedia page on Hubble's Law [2] for more.

[1] https://arxiv.org/abs/0808.1081 [2] https://en.wikipedia.org/wiki/Hubble%27s_law

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