Quasars near companion galaxies - A comment on Arp's statistics

Details Quasars near companion galaxies - A comment on Arp's statistics Quasars near companion galaxies - A comment on Arp's statistics

Dec 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...263l...7b&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 263, Dec. 1, 1982, p. L7, L8.

Mathematics

Probability

8

Galaxies, Quasars, Brightness, Statistical Analysis, Stellar Magnitude

Scientific paper

Arp (1981) has assessed the probability of finding by chance 13 quasars near 34 companions to bright galaxies. A reanalysis is presented which shows that such an occurrence is 10 orders of magnitude more probable than Arp estimates. Taken at face value, the revised estimate of 10 to the -7th for the probability still implies that Arp's findings are statistically significant.

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