The 3-D distribution of Abell clusters

Details The 3-D distribution of Abell clusters The 3-D distribution of Abell clusters

Sep 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988mnras.234..159s&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 234, Sept. 1, 1988, p. 159-172.

Astronomy and Astrophysics

Astronomy

217

Astronomical Catalogs, Galactic Clusters, Red Shift, Spatial Distribution, Correlation, Dark Matter, Line Of Sight, Power Spectra, X Rays

Scientific paper

The spatial distribution of the Struble & Rood catalogue of all measured Abell cluster redshifts is analysed, with correction for the redshift incompleteness in the D = 5 and 6 subsamples. Clear evidence for projection effects in the Abell catalogue is found. This accounts for the elongation of ξcc in the line-of-sight direction seen by Bahcall, Soneira & Burgett. Thus the large peculiar velocities ≡2000 km s-1, which they inferred are not necessary to explain the elongation of ξcc. Finally, the projection effects are compensated for, and a much reduced correlation amplitude is derived.

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