SEARCH FOR LINEAR POLARIZATION OF THE COSMIC BACKGROUND-RADIATION

被引:30
作者
LUBIN, PM [1 ]
SMOOT, GF [1 ]
机构
[1] UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720
关键词
D O I
10.1103/PhysRevLett.42.129
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We present preliminary measurements of the linear polarization of the cosmic microwave background (3 K blackbody) radiation. These ground-based measurements are made at 9-mm wavelength. We find no evidence for linear polarization, and set an upper limit for a polarized component of 0.8 mK with 95% confidence level. This implies that the present rate of expansion of the Universe is isotropic to 1 part in 106, assuming no reionization of the primordial plasma after recombination. © 1979 The American Physical Society.
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页码:129 / 132
页数:4
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