Journal of Astrophysics and Astronomy

, Volume 18, Issue 4, pp 455–463 | Cite as

Quantized redshifts: A status report

  • W. M. Napier
  • B. N. G. Guthrie


The current status of a continuing programme of tests for redshift periodicity or ‘quantization’ of nearby bright galaxies is described. So far the redshifts of over 250 galaxies with high-precision HI profiles have been used in the study. In consistently selected sub-samples of the datasets of sufficient precision examined so far, the redshift distribution has been found to be strongly quantized in the galactocentric frame of reference. The phenomenon is easily seen by eye and apparently cannot be ascribed to statistical artefacts, selection procedures or flawed reduction techniques. Two galactocentric periodicities have so far been detected, ∼ 71 .5km s-1 in the Virgo cluster, and ∼37. 5km s-1 for all other spiral galaxies within ∼ 2600km s-1. The formal confidence levels associated with these results are extremely high.

Key words

Galaxies: distances and redshifts spiral radio lines 


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Copyright information

© Indian Academy of Sciences 1997

Authors and Affiliations

  • W. M. Napier
    • 1
  • B. N. G. Guthrie
    • 2
  1. 1.Armagh ObservatoryArmaghUK
  2. 2.EdinburghScotland, UK

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