Abstract
We investigate some of Tifft's recent statistical analyses of periodicities in extragalactic redshift samples. The values of the periodicities are refinements of those predicted by Lehto. The redshifts have been corrected for the apparent motion of the solar system relative to the cosmic background radiation and have been filtered by applying criteria such as 21 cm profile width and redshift. In all cases except one, our Monte-Carlo simulations show general agreement with Tifft's results. However, we find that one of his analyses is weakened by applying an inappropriate Bernoulli-trials statistic. We apply a new, more straightforward statistic that shows high statistical significance for some of the periodicities. We conclude that although some of Tifft's procedures seem to be open to some criticism, the periodicities are present at a level that is statistically significant.
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Cocke, W. J., & Tifft, W. G.: 1996,Ap & SS 239, 35
Fisher, J. R., & Tully, R. B.: 1981,Ap JS 47, 139
Giovannelli, R., & Haynes, M.: 1985,AJ 90, 2445
Giovannelli, R., & Haynes, M.: 1989,AJ 97, 633
Guthrie, B. N. G., & Napier, W. N.: 1991,MNRAS 253, 533
Hoffmann, G. L. it et al.: 1987,AP JS 63, 247
Lake, R. G., & Roeder, R. C.: 1972,JRAS Canada 66, 111
Lehto, A.: 1990,Chinese J. Phys. 28, 215
Newman, W. I., Haynes, M. P., & Terzian, Y.: 1994,ApJ 344, 111
Newman, W. I., Haynes, M. P., & Terzian, Y.: 1994,ApJ 431, 147
Press, W. H. it et al.: 1992,Numerical Recipes, 2nd edition (Cambridge)
Smoot, G. F. it et al.: 1992:ApJ 396, L1
Tifft, W. G.: 1976,ApJ 206, 38
Tifft, W. G.: 1991,ApJ 382, 396
Tifft, W. G.: 1996,ApJ 468, 491
Tifft, W. G., & Cocke, W. J.: 1984,ApJ 287, 492
Tifft, W. G., & Cocke, W. J.: 1988,ApJS 67, 1
Yu, J. T., & Peebles, P. J. E.: 1969,ApJ 158, 103
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Cocke, W.J., Devito, C.L. & Pitucco, A. Statistical analysis of the occurrence of periodicities in galaxy redshift data. Astrophys Space Sci 244, 143–157 (1996). https://doi.org/10.1007/BF00642287
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DOI: https://doi.org/10.1007/BF00642287