The Robinson Gravitational Wave Background Telescope (BICEP): a bolometric large angular scale CMB polarimeter

被引：23

作者：

Yoon, K. W. ^{[1
]}

Ade, P. A. R. ^{[2
]}

Barkats, D. ^{[1
]}

Battle, J. O. ^{[3
]}

Bierman, E. M. ^{[4
]}

Bock, J. J. ^{[1
,3
]}

Brevik, J. A. ^{[1
]}

Chiang, H. C. ^{[1
]}

Crites, A.

Dowell, C. D. ^{[3
]}

Duband, L. ^{[5
]}

Griffin, G. S. ^{[1
]}

Hivon, E. F. ^{[6
]}

Holzapfel, W. L. ^{[8
]}

Hristov, V. V. ^{[1
]}

Keating, B. G. ^{[4
]}

Kovac, J. M. ^{[1
]}

Kuo, C. L. ^{[3
]}

Lange, A. E. ^{[1
]}

Leitch, E. M. ^{[3
]}

Mason, P. V. ^{[1
]}

Nguyen, H. T. ^{[3
]}

Ponthieu, N. ^{[7
]}

Takahashi, Y. D. ^{[8
]}

Renbarger, T. ^{[4
]}

Weintraub, L. C. ^{[1
]}

Woolsey, D. ^{[8
]}

机构：

[1] CALTECH, 1200 E Calif Blvd,MC 59-53, Pasadena, CA 91125 USA

[2] Univ Wales Coll Cardiff, Dept Phys & Astron, Cardiff CF24 3YB, S Glam, Wales

[3] Jet Prop Lab, Pasadena, CA 91109 USA

[4] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA

[5] SBT, Commissariat Energie Atomique, Grenoble, France

[6] Ctr Infrared Proc & Anal, Pasadena, CA 91125 USA

[7] Univ Paris 11, Inst Astrophys Spatiale, Orsay, France

[8] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

来源：

MILLIMETER AND SUBMILLIMETER DETECTORS AND INSTRUMENTATION FOR ASTRONOMY III | 2006年 / 6275卷

基金：

美国国家科学基金会;

关键词：

cosmic microwave background polarization; mm-wave; bolometers; cosmology; inflation; gravitational waves;

D O I：

10.1117/12.672652

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Robinson Telescope (BICEP) is a ground-based millimeter-wave bolometric array designed to study the polarization of the cosmic microwave background radiation (CMB) and galactic foreground emission. Such measurements probe the energy scale of the inflationary epoch, tighten constraints on cosmological parameters, and verify our current understanding of CMB physics. Robinson consists of a 250-mm. aperture refractive telescope that provides an instantaneous field-of-view of 17 degrees with angular resolution of 55 degrees and 37 degrees at 100 GHz and 150 GHz, respectively. Forty-nine pair of polarization-sensitive bolometers are cooled to 250 mK using a He-4/He-3/He-3 sorption fridge system, and coupled to incoming radiation via corrugated feed horns. The all-refractive optics is cooled to 4 K to minimize polarization systematics and instrument loading. The fully steerable 3-axis mount is capable of continuous boresight rotation or azimuth scanning at speeds up to 5 deg/s. Robinson has begun its first season of observation at the South Pole. Given the measured performance of the instrument along with the excellent observing environment, Robinson will measure the E-mode polarization with high sensitivity, and probe for the B-modes to unprecedented depths. In this paper we discuss aspects of the instrument design and their scientific motivations, scanning and operational strategies, and the results of initial testing and observations.

引用

页数：18

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