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Article #4053Re: Are redshifts discrete?
From: Ethan Tecumseh Vishniac
Date: Tue, 29 Sep 1992 15:49
Date: Tue, 29 Sep 1992 15:49
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It might be worth remembering, when considering Tifft's claim, that a number of different kinds of redshifts are obviously not quantized in units of 72 km/sec. For example, redshifts within our galaxy are not. Redshifts of nearby galaxies are not. Redshifts of gas inside other galaxies are not, since rotation curves are masured by looking at 21cm emission. This effect, if real, only shows up when considering the average redshifts of distant galaxies. I would bet, if I were a betting man, that this is some sort of statistical problem with the data reduction, a topic on which I'm largely ignorant. If it keeps cropping up in various studies then I'll have to pay more attention to it. -- "Quis tamen tale studium, quo ad primam omnium rerum causam evehimur, tamquam inutile aut contemnendum detractare ac deprimere ausit?"-Bridel Ethan T. Vishniac, Dept. of Astronomy, The University of Texas at Austin Austin, Texas, 78712 ethan@astro.as.utexas.edu
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Path: arc1-ca.pugleaf.net!sparky!uunet!snorkelwacker.mit.edu!think.com!sdd.hp.com!cs.utexas.edu!ut-emx!ethan From: ethan@ut-emx.uucp (Ethan Tecumseh Vishniac) Newsgroups: sci.physics Subject: Re: Are redshifts discrete? Summary: Rotation curves Message-ID: <80716@ut-emx.uucp> Date: 29 Sep 92 15:49:19 GMT References: <1992Sep16.213740.25001@galois.mit.edu> <1992Sep22.182050.7827@cid.aes.doe.CA> <Sep.23.19.48.07.1992.9310@ruhets.rutgers.edu> Organization: The University of Texas at Austin; Austin, Texas Lines: 19