A preliminary measurement of the cosmic microwave background spectrum by the Cosmic Background Explorer (COBE) satellite

Autor:	J. C. Mather, E. S. Cheng, R. E., Jr. Eplee, R. B. Isaacman, S. S. Meyer, R. A. Shafer, R. Weiss, E. L. Wright, C. L. Bennett, N. W. Boggess, E. Dwek, S. Gulkis, M. G. Hauser, M. Janssen, T. Kelsall, P. M. Lubin, S. H., Jr. Moseley, T. L. Murdock, R. F. Silverberg, G. F. Smoot, D. T. Wilkinson
Rok vydání:	1990
Předmět:	Physics COSMIC cancer database Space and Planetary Science Cosmic infrared background Cosmic microwave background Cosmic background radiation Astronomy Astronomy and Astrophysics Black-body radiation Astrophysics Spectral resolution Microwave Background radiation
Zdroj:	The Astrophysical Journal. 354:L37
ISSN:	1538-4357 0004-637X
Popis:	A preliminary spectrum is presented of the background radiation between 1 and 20/cm from regions near the north Galactic pole, as observed by the FIRAS instrument on the COBE satellite. The spectral resolution is 1/cm. The spectrum is well fitted by a blackbody with a temperature of 2.735 + or - 0.06 K, and the deviation from a blackbody is less than 1 percent of the peak intensity over the range 1-20/cm. These new data show no evidence for the submillimeter excess previously reported by Matsumoto et al. (1988) in the cosmic microwave background. Further analysis and additional data are expected to improve the sensitivity to deviations from a blackbody spectrum by an order of magnitude.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::42c1f2085e5fe829d8aed89a88185068 https://doi.org/10.1086/185717 Zobrazit plný text záznamu