Interpretation of the cosmic microwave background radiation anisotropy detected by the COBE Differential Microwave Radiometer

Abstract

view Abstract Citations (469) References (37) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Interpretation of the Cosmic Microwave Background Radiation Anisotropy Detected by the COBE Differential Microwave Radiometer Wright, E. L. ; Meyer, S. S. ; Bennett, C. L. ; Boggess, N. W. ; Cheng, E. S. ; Hauser, M. G. ; Kogut, A. ; Lineweaver, C. ; Mather, J. C. ; Smoot, G. F. ; Weiss, R. ; Gulkis, S. ; Hinshaw, G. ; Janssen, M. ; Kelsall, T. ; Lubin, P. M. ; Moseley, S. H., Jr. ; Murdock, T. L. ; Shafer, R. A. ; Silverberg, R. F. ; Wilkinson, D. T. Abstract We compare the large-scale cosmic background anisotropy detected by the COBE Differential Microwave Radiometer (DMR) instrument to the sensitive previous measurements on various angular scales, and to the predictions of a wide variety of models of structure formation driven by gravitational instability. The observed anisotropy is consistent with all previously measured upper limits and with a number of dynamical models of structure formation. For example, the data agree with an unbiased cold dark matter (CDM) model with H_0_ = 50 km s^-1^ Mpc^-1^ and {DELTA}M/M = 1 in a 16 Mpc radius sphere. Other models, such as CDM plus massive neutrinos [hot dark matter (HDM)], or CDM with a nonzero cosmological constant are also consistent with the COBE detection and can provide the extra power seen on 5-10,000 km s^-1^ scales. Publication: The Astrophysical Journal Pub Date: September 1992 DOI: 10.1086/186506 Bibcode: 1992ApJ...396L..13W Keywords: Cosmic Background Explorer Satellite; Dark Matter; Gravitational Fields; Microwave Radiometers; Relic Radiation; Astronomical Models; Galactic Clusters; Space Radiation; COSMOLOGY: COSMIC MICROWAVE BACKGROUND; COSMOLOGY: OBSERVATIONS; COSMOLOGY: THEORY; GALAXIES: CLUSTERING full text sources ADS |