A study of the large-scale distribution of galaxies in the South Galactic Pole region -- II. Further evidence for a preferential clustering scale?
Open Access
- 11 February 1997
- journal article
- research article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 285 (1) , 218-224
- https://doi.org/10.1093/mnras/285.1.218
Abstract
We analyse a set of new pencil-beam galaxy redshift data in three small regions around the South Galactic Pole area. We investigate whether we can find any evidence of the quasi-periodic peaks discovered by Broadhurst et al. in the distribution of galaxies along the North Galactic Pole-South Galactic Pole directions. We use both a power spectrum analysis and a cross-correlation with a sliding comb-like window (the comb-template technique). Despite the data being less deep ( ∼ 600 h−1 Mpc) and certainly not optimal for such an investigation, there is evidence of the same preferential ∼130h−1Mpc scale in two fields displaced respectively 15° and 30° west of the Broadhurst et al. original probe. Taken alone, however, this scale would not be statistically distinguishable from a noise fluctuation. Nevertheless, the statistical significance rises to ∼ 99 per cent when one refers to the conditional probability of finding a peak around the same scale measured by Broadhurst et al.Keywords
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