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Article #4336Re: Are redshifts discrete?
From: Benjamin Weiner
Date: Fri, 02 Oct 1992 20:43
Date: Fri, 02 Oct 1992 20:43
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1646 bytes
Joe Keane writes: >Well, it seems that everyone took the opportunity to show how you can't have >all the redshifts be perfectly quantized for all observers. But that's not >what was being claimed! What they said is that there are peaks in the power >spectrum. Are you sure? Broadhurst et. al.'s Nature paper is about peaks in the power spectrum, but that's not what I was talking about, as I tried to make clear some time ago. Tifft and company (papers in the Astrophysical Journal) seem to claim that there are exactly quantized redshifts in units of 12.07 km/s. > ... if your lattice has spacing 1/f, you >will also get frequency peaks at f/sqrt(2) and so on. I know this. I'm not sure what Tifft thinks, 'cause he doesn't do irrational multiples (that's the "quantization"). At least, so it seems; his papers are none too clear. >Having said that, i think the claimed peaks probably don't exist. I heard from a friend that somebody, he can't remember who, says the Broadhurst result goes away if you do different binning. I think there is unspoken agreement that the Tifft results are not worth spending time worrying about.
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Path: arc1-ca.pugleaf.net!sparky!uunet!dziuxsolim.rutgers.edu!ruhets.rutgers.edu!bweiner From: bweiner@ruhets.rutgers.edu (Benjamin Weiner) Newsgroups: sci.physics Subject: Re: Are redshifts discrete? Keywords: autocorrelation Message-ID: <Oct.2.16.43.22.1992.5272@ruhets.rutgers.edu> Date: 2 Oct 92 20:43:22 GMT References: <1992Sep16.213740.25001@galois.mit.edu> <Sep.23.19.48.07.1992.9310@ruhets.rutgers.edu> <5775@osc.COM> Organization: Rutgers Univ., New Brunswick, N.J. Lines: 25