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Author Newman, W. I. ♦ Haynes, M. P. ♦ Terzian, Y.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ GALAXIES ♦ MORPHOLOGY ♦ GRAVITATIONAL INTERACTIONS ♦ MONTE CARLO METHOD ♦ NOISE ♦ RED SHIFT ♦ STATISTICS ♦ VELOCITY ♦ BASIC INTERACTIONS ♦ INTERACTIONS ♦ MATHEMATICS ♦ Astrophysics & Cosmology- Galaxies
Abstract Tifft (1980, 1982) claimed that observations of double galaxies reveal a 72 km/s periodicity. Sharp showed that the periodicities in the observations are completely consistent with the statistics of small numbers. Here it is shown that Tifft's statistical procedure would ascribe a periodicity to small sets of Gaussian random noise. Satisfying the null hypothesis that the observations are not samples drawn from a normal population would require the acquisition of at least an order of magnitude more data. 10 refs.
ISSN 0004637X
Educational Use Research
Learning Resource Type Article
Publisher Date 1989-09-01
Publisher Place United States
Journal Astrophysical Journal
Volume Number 344


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