Title: Structure in the COBE differential microwave radiometer first-year maps
Abstract: view Abstract Citations (2594) References (25) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Structure in the COBE Differential Microwave Radiometer First-Year Maps Smoot, G. F. ; Bennett, C. L. ; Kogut, A. ; Wright, E. L. ; Aymon, J. ; Boggess, N. W. ; Cheng, E. S. ; de Amici, G. ; Gulkis, S. ; Hauser, M. G. ; Hinshaw, G. ; Jackson, P. D. ; Janssen, M. ; Kaita, E. ; Kelsall, T. ; Keegstra, P. ; Lineweaver, C. ; Loewenstein, K. ; Lubin, P. ; Mather, J. ; Meyer, S. S. ; Moseley, S. H. ; Murdock, T. ; Rokke, L. ; Silverberg, R. F. ; Tenorio, L. ; Weiss, R. ; Wilkinson, D. T. Abstract Results of the first year of data from the differential microwave radiometers on the Cosmic Background Explorer are presented. Statistically significant structure that is well described as scale-invariant fluctuations with a Gaussian distribution is shown. The rms sky variation, smoothed to a total 10-deg FWHM Gaussian, is 30 +/-5 micro-K for Galactic latitude greater than 20-deg data with the dipole anisotropy removed. The rms cosmic quadrupole amplitude is 13 +/-4 micro-K. The angular autocorrelation of the signal in each radiometer channel and cross-correlation between channels are consistent and give a primordial fluctuation power-law spectrum with index of 1.1 +/-0.5, and an rms-quadrupole-normalized amplitude of 16 +/-4 micro-K. These features are in accord with the Harrison-Zel'dovich spectrum predicted by models of inflationary cosmology. Publication: The Astrophysical Journal Pub Date: September 1992 DOI: 10.1086/186504 Bibcode: 1992ApJ...396L...1S Keywords: Cosmic Background Explorer Satellite; Microwave Radiometers; Normal Density Functions; Relic Radiation; Root-Mean-Square Errors; Astronomical Maps; Milky Way Galaxy; Space Radiation; COSMOLOGY: COSMIC MICROWAVE BACKGROUND; COSMOLOGY: OBSERVATIONS full text sources ADS |