Cosmic microwave background dipole spectrum measured by the COBE FIRAS instrument

Autor:	Peter D. Noerdlinger, S. H. Moseley, E. S. Cheng, John C. Mather, Rick Shafer, Robert E. Eplee, David T. Wilkinson, S. S. Meyer, N. W. Boggess, Charles L. Bennett, George F. Smoot, T. Kelsall, Rainer Weiss, D. J. Fixsen, Robert F. Silverberg, D. A. Cottingham, R. B. Isaacman, Edward L. Wright
Rok vydání:	1994
Předmět:	Physics Dipole COSMIC cancer database Amplitude Space and Planetary Science Cosmic microwave background Astronomy and Astrophysics Cosmic ray Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics Spectral resolution Noise (radio) Background radiation
Zdroj:	The Astrophysical Journal. 420:445
ISSN:	1538-4357 0004-637X
DOI:	10.1086/173575
Popis:	The Far-Infrared Absolute Spectrophotometer (FIRAS) instrument on the Cosmic Background Explorer (COBE) has determined the dipole spectrum of the cosmic microwave background radiation (CMBR) from 2 to 20/cm. For each frequency the signal is decomposed by fitting to a monopole, a dipole, and a Galactic template for approximately 60% of the sky. The overall dipole spectrum fits the derivative of a Planck function with an amplitude of 3.343 +/- 0.016 mK (95% confidence level), a temperature of 2.714 +/- 0.022 K (95% confidence level), and an rms deviation of 6 x 10(exp -9) ergs/sq cm/s/sr cm limited by a detector and cosmic-ray noise. The monopole temperature is consistent with that determined by direct measurement in the accompanying article by Mather et al.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2326d47730cf1f795939fdadab927505 https://doi.org/10.1086/173575 Zobrazit plný text záznamu