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29 March 2024
 
  » arxiv » astro-ph/9403067

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On Determining the Spectrum of Primordial Inhomogeneity from the COBE DMR Sky Maps: II. Results of Two Year Data Analysis
K.M. Gorski ; G. Hinshaw ; A.J. Banday ; C.L. Bennett ; E.L. Wright ; A. Kogut ; G.F. Smoot & P. Lubin ;
Date 1 Apr 1994
Subject astro-ph
AbstractA new technique of Fourier analysis on a cut sky (Gorski, 1994) has been applied to the two year COBE DMR sky maps. The Bayesian power spectrum estimation results are consistent with the Harrison-Zel’dovich n=1 model. The maximum likelihood estimates of the parameters of the power spectrum of primordial perturbations are n=1.22 (1.02) and Q_{rms-PS}=17 (20) uK including (excluding) the quadrupole anisotropy. The marginal likelihood function on n renders n=1.10 pm 0.32 (0.87 pm 0.36).
Source arXiv, astro-ph/9403067
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