| タイトル | The amplitude and spectral index of the large angular scale anisotropy in the cosmic microwave background radiation |
| 著者（英） | Page, Lyman; Meyer, Stephan; Cheng, Edward; Ganga, Ken |
| 著者所属（英） | NASA Headquarters; NASA Goddard Space Flight Center |
| 発行日 | 1994-09-01 |
| 言語 | eng |
| 内容記述 | In many cosmological models, the large angular scale anisotropy in the cosmic microwave background is parameterized by a spectral index, n, and a quadrupolar amplitude, Q. For a Harrison-Peebles-Zel'dovich spectrum, n = 1. Using data from the Far Infrared Survey (FIRS) and a new statistical measure, a contour plot of the likelihood for cosmological models for which -1 less than n less than 3 and 0 equal to or less than Q equal to or less than 50 micro K is obtained. Depending upon the details of the analysis, the maximum likelihood occurs at n between 0.8 and 1.4 and Q between 18 and 21 micro K. Regardless of Q, the likelihood is always less than half its maximum for n less than -0.4 and for n greater than 2.2, as it is for Q less than 8 micro K and Q greater than 44 micro K. |
| NASA分類 | ASTROPHYSICS |
| レポートNO | 95A69784 |
| 権利 | Copyright |
|
