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Record 5 of 92
Maximum-likelihood analysis of the COBE angular correlation function
Offline Availability: Go to Request Form
Author and Affiliation:
Seljak, Uros(Massachusetts Inst. of Tech., Dept. of Physics., Cambridge, MA United States)
Bertschinger, Edmund(Massachusetts Inst. of Tech., Dept. of Physics., Cambridge, MA United States)
Abstract: We have used maximum-likelihood estimation to determine the quadrupole amplitude Q(sub rms-PS) and the spectral index n of the density fluctuation power spectrum at recombination from the COBE DMR data. We find a strong correlation between the two parameters of the form Q(sub rms-PS) = (15.7 +/- 2.6) exp (0.46(1 - n)) microK for fixed n. Our result is slightly smaller than and has a smaller statistical uncertainty than the 1992 estimate of Smoot et al.
Publication Date: Jan 01, 1993
Document ID:
19960016406
(Acquired Apr 10, 1996)
Accession Number: 96N71043
Subject Category: SPACE RADIATION
Report/Patent Number: NASA-CR-200168, NAS 1.26:200168
Document Type: Reprint
Contract/Grant/Task Num: NAGw-2807; NSF AST-90-01762
Financial Sponsor: NASA; Washington, DC United States
Organization Source: Massachusetts Inst. of Tech.; Dept. of Physics.; Cambridge, MA United States
Description: 4p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright; Distribution as joint owner in the copyright
NASA Terms: MAXIMUM LIKELIHOOD ESTIMATES; ANGULAR CORRELATION; FUNCTIONS (MATHEMATICS); COSMOLOGY; MICROWAVES; BACKGROUND RADIATION; COSMIC RAYS; ANISOTROPY; POWER SPECTRA; COSMIC BACKGROUND EXPLORER SATELLITE; QUADRUPOLES; LARGE SPACE STRUCTURES; UNIVERSE; MICROWAVE RADIOMETERS; MONTE CARLO METHOD; COMPUTERIZED SIMULATION
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