Structure in the COBE differential microwave radiometer first-year maps
Structure in the COBE differential microwave radiometer first-year maps
复制标题
DOI：
10.1086/186504
复制
发表时间：
1992-09
期刊：
影响因子：
--
通讯作者：
G. Smoot;C. Bennett;A. Kogut;E. Wright;J. Aymon;N. Boggess;E. Cheng;G. Amici;S. Gulkis;M. Hauser;G. Hinshaw;P. Jackson;M. Janssen;E. Kaita;T. Kelsall;P. Keegstra;C. Lineweaver;K. Löwenstein;P. Lubin;J. Mather;S. Meyer;S. Moseley;T. Murdock;L. Rokke;R. Silverberg;L. Tenorio;R. Weiss;D. Wilkinson
中科院分区：
文献类型：
--
作者：
G. Smoot;C. Bennett;A. Kogut;E. Wright;J. Aymon;N. Boggess;E. Cheng;G. Amici;S. Gulkis;M. Hauser;G. Hinshaw;P. Jackson;M. Janssen;E. Kaita;T. Kelsall;P. Keegstra;C. Lineweaver;K. Löwenstein;P. Lubin;J. Mather;S. Meyer;S. Moseley;T. Murdock;L. Rokke;R. Silverberg;L. Tenorio;R. Weiss;D. Wilkinson
给出了宇宙背景探测器上的差动微波辐射计第一年的数据结果。统计意义的结构被很好地描述为具有高斯分布的尺度不变的涨落。对于大于20度的银河系纬度，去除偶极各向异性后，均方根天空变化，平滑到总的10度半高宽高斯，是30+/-5微K。均方根宇宙四极矩振幅为13+/-4微K。每个辐射计通道内信号的角度自相关和通道间的互相关是一致的，给出了指数为1.1+/-0.5的原始起伏指数谱和均方根四极归一化幅度为16+/-4微K。这些特征与膨胀宇宙学模型预测的哈里森-泽多维奇谱是一致的。参考文献29。
Results of the first year of data from the differential microwave radiometers on the Cosmic Background Explorer are presented. Statistically significant structure that is well described as scale-invariant fluctuations with a Gaussian distribution is shown. The rms sky variation, smoothed to a total 10-deg FWHM Gaussian, is 30 +/-5 micro-K for Galactic latitude greater than 20-deg data with the dipole anisotropy removed. The rms cosmic quadrupole amplitude is 13 +/-4 micro-K. The angular autocorrelation of the signal in each radiometer channel and cross-correlation between channels are consistent and give a primordial fluctuation power-law spectrum with index of 1.1 +/-0.5, and an rms-quadrupole-normalized amplitude of 16 +/-4 micro-K. These features are in accord with the Harrison-Zel'dovich spectrum predicted by models of inflationary cosmology. 29 refs.