Cosmological parameters from the eigenmode analysis of the Las Campanas Redshift Survey

Citation
T. Matsubara et al., Cosmological parameters from the eigenmode analysis of the Las Campanas Redshift Survey, ASTROPHYS J, 535(1), 2000, pp. L1-L4
Citations number
11
Categorie Soggetti
Space Sciences
Journal title
ASTROPHYSICAL JOURNAL
ISSN journal
0004637X → ACNP
Volume
535
Issue
1
Year of publication
2000
Part
2
Pages
L1 - L4
Database
ISI
SICI code
0004-637X(20000520)535:1<L1:CPFTEA>2.0.ZU;2-T
Abstract
We present the first results of the Karhunen-Loeve eigenmodes applied to re al data of the Las Campanas Redshift Survey to simultaneously measure the v alues of the redshift distortion parameter beta = Omega(0)(0.6)/b, the line arly extrapolated normalization sigma(8)(L), and the cold dark matter shape parameter Gamma = Omega(0)h. The results of our numerical likelihood analy sis indicate a low value of beta = 0.30 +/- 0.39, a shape parameter Gamma = 0.16 +/- 0.10, and a linearly extrapolated normalization sigma(8)(L) = 0.7 9 +/- 0.08, which are consistent with a low-density universe (Omega(0) less than or similar to 0.5).