NonGaussian Statistics of Pencil Beam Surveys
Abstract
We study the effect of the nonGaussian clustering of galaxies on the statistics of pencil beam surveys. We derive the probability distribution from the power spectrum peaks by means of Edgeworth expansion and find that the higher order moments of the galaxy distribution play a dominant role. The probability of obtaining the 128 h^1^ Mpc periodicity found in pencil beam surveys is raised by more than one order of magnitude, up to 1%. Further data are needed to decide if nonGaussian distribution alone is sufficient to explain the 128 h^1^ Mpc periodicity, or if extra largescale power is necessary.
 Publication:

The Astrophysical Journal
 Pub Date:
 July 1994
 DOI:
 10.1086/187425
 arXiv:
 arXiv:astroph/9402059
 Bibcode:
 1994ApJ...430L...9A
 Keywords:

 Galactic Clusters;
 Pencil Beams;
 Probability Distribution Functions;
 Sky Surveys (Astronomy);
 Periodic Variations;
 Power Spectra;
 Regularity;
 Astronomy;
 GALAXIES: CLUSTERING;
 COSMOLOGY: LARGESCALE STRUCTURE OF UNIVERSE;
 Astrophysics
 EPrint:
 9 pages,2 figs available on request,Latex, revised version with significant changes, preprint FermilabPub94043A