Transform analysis of the high-resolution Shane-Wirtanen catalog: The power spectrum and the bispectrum

Journal Article · Sun Aug 15 04:00:00 EDT 1982 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/160184· OSTI ID:6708143

Fry, J N; Seldner, M

To extract more statistical information from the high resolution (10') Shane-Wirtanen data, and in particular to gain information about the large-scale behavior of galaxy clustering, we have examined the two- and three-point galaxy correlation functions in Fourier transform space for wavelengths corresponding to 1/2 /sup 0/< or approx. =theta< or approx. =70/sup 0/ (2 Mpc< or approx. =hr< or approx. =260 Mpc, h = Hubble's constant in units of 100 km s/sup -1/ Mpc/sup -1/). To the extent that our results can be compared to earlier works, we obtain rough agreement, but we are able to identify some systematic differences also. There is no evidence for any transition in behavior of the power spectrum corresponding to the break in the two-point function at 2./sup 0/5 (9 h/sup -1/ Mpc), but this characteristic scale does appear in the bispectrum. The small k (large angle) behavior of the power spectrum is as k/sup n/, with nroughly-equal-1.

• Research Organization: Astronomy and Astrophysics Center, Enrico Fermi Institute, The University of Chicato
• DOE Contract Number: AC02-80ER10773
• OSTI ID: 6708143
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 259:2; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics &amp; Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CATALOGS
DATA ANALYSIS
DOCUMENT TYPES
FOURIER ANALYSIS
FOURIER TRANSFORMATION
GALAXY CLUSTERS
INTEGRAL TRANSFORMATIONS
MATHEMATICS
STATISTICS
TRANSFORMATIONS