Polarization observations with the Cosmic Background Imager

被引：0
|
作者：
Cartwright, JK [1 ]
Readhead, ACS [1 ]
Shepherd, MC [1 ]
Padin, S [1 ]
Pearson, TJ [1 ]
Taylor, GB [1 ]
机构：
[1] CALTECH, Dept Astron, Pasadena, CA 91125 USA
来源：
EXPERIMENTAL COSMOLOGY AT MILLIMETRE WAVELENGTHS | 2002年 / 616卷
关键词：
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中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We describe polarization observations of the CMBR with the Cosmic Background Imager, a 13 element interferometer which operates in the 26-36 GHz band from Llano de Chajnantour in northern Chile. The array consists of 90-cm Cassegrain antennas mounted on a steerable platform which can be rotated about the optical axis to facilitate polarization observations. The CBI employs single mode circularly polarized receivers which sample multipoles from lsimilar to400 to lsimilar to4250. The instrumental polarization of the CBI was calibrated with 3C279, a bright polarized point source which was monitored with the VLA.
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页码：135 / 139
页数：5
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