| タイトル | Noncosmological signal contributions to the COBE DMR anisotropy maps |
| 著者（英） | Kogut, A.; Loewenstein, K.; Cheng, E. S.; Hinshaw, G.; Bennett, C. L.; Banday, A.; Wright, E. L. |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 1993-09-10 |
| 言語 | eng |
| 内容記述 | We examine the COBE Differential Microwave Radiometer (DMR) data for evidence of noncosmological source contributions. The DMR maps are cross-correlated with maps of rich clusters, extragalactic IRAS sources, HEAO 1 A-2 X-ray emission, and 5 GHz radio sources. We limit the rms contributions from these sources on a 7 deg angular scale to less than 10 micro-K (95 percent confidence level) in the DMR maps, although the LMC probably contributes about 50 micro-K to a limited region of the sky. Thus, our previous interpretation that the fluctuations in the COBE DMR data are most likely due to cosmic fluctuations at the surface of last scattering remains intact. The Comptonization parameter for hot electrons traced by rich clusters is limited to delta(y) less than 2 x 10 exp -6 (95 percent confidence level) averaged over the 7 deg DMR beam. |
| NASA分類 | SPACE RADIATION |
| レポートNO | 93A56108 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/313804 |
|
