Open AccessParameter constraints for flat cosmologies from cosmic microwave background and 2dFGRS power spectra
Author(s) -
Percival Will J.,
Sutherland Will,
Peacock John A.,
Baugh Carlton M.,
BlandHawthorn Joss,
Bridges Terry,
Can Russell,
Cole Shaun,
Colless Matthew,
Collins Chris,
Couch Warrick,
Dalton Gavin,
De Propris Roberto,
Driver Simon P.,
Efstathiou George,
Ellis Richard S.,
Frenk Carlos S.,
Glazebrook Karl,
Jackson Carole,
Lahav Ofer,
Lewis Ian,
Lumsden Stuart,
Maddox Steve,
Moody Stephen,
Norberg Peder,
Peterson Bruce A.,
Taylor Keith
Publication year - 2002
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1046/j.1365-8711.2002.06001.x
Subject(s) - physics , cosmic microwave background , hubble's law , spectral density , astrophysics , omega , galaxy , cosmological constant , cmb cold spot , redshift , cosmic background radiation , tensor (intrinsic definition) , mathematical physics , anisotropy , quantum mechanics , statistics , mathematics , pure mathematics
We constrain flat cosmological models with a joint likelihood analysis of a new compilation of data from the cosmic microwave background (CMB) and from the 2dF Galaxy Redshift Survey (2dFGRS). Fitting the CMB alone yields a known degeneracy between the Hubble constant h and the matter density Ωm, which arises mainly from preserving the location of the peaks in the angular power spectrum. This ‘hor...