skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

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

Abstract

The large-scale cosmic background anisotropy detected by the COBE Differential Microwave Radiometer (DMR) instrument is compared 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 H0 = 50 km/s Mpc 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 scales. 39 refs.

Authors:
; ; ; ; ; ; ; ; ;  [1]
  1. California, University, Los Angeles (United States) MIT, Cambridge, MA (United States) NASA, Goddard Space Flight Center, Greenbelt, MD (United States) Universities Space Research Association, Boulder, CO (United States) Lawrence Berkeley Laboratory, CA (United States) California, University, Berkeley (United States)
Publication Date:
OSTI Identifier:
7159126
Resource Type:
Journal Article
Journal Name:
Astrophysical Journal; (United States)
Additional Journal Information:
Journal Volume: 396:1; Other Information: L13-L18. Research supported by NASA; Journal ID: ISSN 0004-637X
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; RELICT RADIATION; ANISOTROPY; COMPARATIVE EVALUATIONS; COSMOLOGICAL MODELS; GALAXY CLUSTERS; GRAVITATIONAL FIELDS; GRAVITATIONAL INSTABILITY; NONLUMINOUS MATTER; RADIOMETERS; SATELLITES; ELECTROMAGNETIC RADIATION; EVALUATION; INSTABILITY; MATHEMATICAL MODELS; MATTER; MEASURING INSTRUMENTS; MICROWAVE RADIATION; PLASMA INSTABILITY; RADIATION DETECTORS; RADIATIONS; 661300* - Other Aspects of Physical Science- (1992-)

Citation Formats

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, and Smoot, G F. Interpretation of the cosmic microwave background radiation anisotropy detected by the COBE Differential Microwave Radiometer. United States: N. p., 1992. Web. doi:10.1086/186506.
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. Interpretation of the cosmic microwave background radiation anisotropy detected by the COBE Differential Microwave Radiometer. United States. https://doi.org/10.1086/186506
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, and Smoot, G F. 1992. "Interpretation of the cosmic microwave background radiation anisotropy detected by the COBE Differential Microwave Radiometer". United States. https://doi.org/10.1086/186506.
@article{osti_7159126,
title = {Interpretation of the cosmic microwave background radiation anisotropy detected by the COBE Differential Microwave Radiometer},
author = {Wright, E L and Meyer, S S and Bennett, C L and Boggess, N W and Cheng, E S and Hauser, M G and Kogut, A and Lineweaver, C and Mather, J C and Smoot, G F},
abstractNote = {The large-scale cosmic background anisotropy detected by the COBE Differential Microwave Radiometer (DMR) instrument is compared 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 H0 = 50 km/s Mpc 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 scales. 39 refs.},
doi = {10.1086/186506},
url = {https://www.osti.gov/biblio/7159126}, journal = {Astrophysical Journal; (United States)},
issn = {0004-637X},
number = ,
volume = 396:1,
place = {United States},
year = {Tue Sep 01 00:00:00 EDT 1992},
month = {Tue Sep 01 00:00:00 EDT 1992}
}