Mean density and two-point correlation function for the CfA redshift survey slices

Journal Article · Thu Sep 01 04:00:00 EDT 1988 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/166627· OSTI ID:7051036

De Lapparent, V; Geller, M J; Huchra, J P

The effect of large-scale inhomogeneities on the determination of the mean number density and the two-point spatial correlation function were investigated for two complete slices of the extension of the Center for Astrophysics (CfA) redshift survey (de Lapparent et al., 1986). It was found that the mean galaxy number density for the two strips is uncertain by 25 percent, more so than previously estimated. The large uncertainty in the mean density introduces substantial uncertainty in the determination of the two-point correlation function, particularly at large scale; thus, for the 12-deg slice of the CfA redshift survey, the amplitude of the correlation function at intermediate scales is uncertain by a factor of 2. The large uncertainties in the correlation functions might reflect the lack of a fair sample. 45 references.

• Research Organization: Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (USA)
• OSTI ID: 7051036
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 332; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CORRELATION FUNCTIONS
DENSITY
DISTRIBUTION
FUNCTIONS
GALAXIES
GALAXY CLUSTERS
PHYSICAL PROPERTIES
RED SHIFT
SPATIAL DISTRIBUTION
SURVEYS