Detection of B-Mode Polarization in the Cosmic Microwave Background with Data from the South Pole Telescope

被引：262

作者：

Hanson, D. ^{[1
]}

Hoover, S. ^{[2
,3
]}

Crites, A. ^{[2
,4
]}

Ade, P. A. R. ^{[5
]}

Aird, K. A. ^{[6
]}

Austermann, J. E. ^{[7
]}

Beall, J. A. ^{[8
]}

Bender, A. N. ^{[1
]}

Benson, B. A. ^{[2
,3
]}

Bleem, L. E. ^{[2
,9
]}

Bock, J. J. ^{[10
,11
]}

Carlstrom, J. E. ^{[2
,3
,4
,9
,12
]}

Chang, C. L. ^{[2
,3
,12
]}

Chiang, H. C. ^{[2
,13
]}

Cho, H-M. ^{[7
,8
]}

Conley, A. ^{[7
]}

Crawford, T. M. ^{[2
,4
]}

de Haan, T. ^{[1
]}

Dobbs, M. A. ^{[1
]}

Everett, W. ^{[7
]}

Gallicchio, J. ^{[2
]}

Gao, J. ^{[8
]}

George, E. M. ^{[14
]}

Halverson, N. W. ^{[7
,15
]}

Harrington, N. ^{[14
]}

Henning, J. W. ^{[7
]}

Hilton, G. C. ^{[8
]}

Holder, G. P. ^{[1
]}

Holzapfel, W. L. ^{[14
]}

Hrubes, J. D. ^{[6
]}

Huang, N. ^{[14
]}

Hubmayr, J. ^{[8
]}

Irwin, K. D. ^{[8
]}

Keisler, R. ^{[2
,9
]}

Knox, L. ^{[16
]}

Lee, A. T. ^{[14
,17
]}

Leitch, E. ^{[2
,4
]}

Li, D. ^{[8
]}

Liang, C. ^{[2
,4
]}

Luong-Van, D. ^{[2
]}

Marsden, G. ^{[18
]}

McMahon, J. J. ^{[19
]}

Mehl, J. ^{[2
,12
]}

Meyer, S. S. ^{[2
,3
,4
,9
]}

Mocanu, L. ^{[2
,4
]}

Montroy, T. E. ^{[20
]}

Natoli, T. ^{[2
,9
]}

Nibarger, J. P. ^{[8
]}

Novosad, V. ^{[21
]}

Padin, S. ^{[10
]}

机构：

[1] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada

[2] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA

[3] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA

[4] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA

[5] Cardiff Univ, Sch Phys & Astron, Cardiff CF24 3YB, S Glam, Wales

[6] Univ Chicago, Chicago, IL 60637 USA

[7] Univ Colorado, CASA, Dept Astrophys & Planetary Sci, Boulder, CO 80309 USA

[8] NIST, Boulder, CO 80305 USA

[9] Univ Chicago, Dept Phys, Chicago, IL 60637 USA

[10] CALTECH, Pasadena, CA 91125 USA

[11] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

[12] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA

[13] Univ KwaZulu Natal, Sch Math Stat & Comp Sci, ZA-4000 Durban, South Africa

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

[15] Univ Colorado, Dept Phys, Boulder, CO 80309 USA

[16] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA

[17] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Phys, Berkeley, CA 94720 USA

[18] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada

[19] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA

[20] Case Western Reserve Univ, Dept Phys, Cleveland, OH 44106 USA

[21] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA

[22] Univ Minnesota, Dept Phys, Minneapolis, MN 55455 USA

[23] Sch Art Inst Chicago, Liberal Arts Dept, Chicago, IL 60603 USA

[24] CALTECH, Ctr Infrared Proc & Anal, JPL, Pasadena, CA 91125 USA

[25] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

[26] Univ Toronto, Dunlap Inst Astron & Astrophys, Toronto, ON M5S 3H4, Canada

[27] Univ Toronto, Dept Astron & Astrophys, Toronto, ON M5S 3H4, Canada

[28] Univ Calif Berkeley, Dept Phys, Berkeley Ctr Cosmol Phys, Berkeley, CA 94720 USA

[29] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 111卷 / 14期

基金：

美国国家科学基金会;

关键词：

POWER SPECTRA; GRAVITY-WAVES; TEMPERATURE; LIGHT;

D O I：

10.1103/PhysRevLett.111.141301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Gravitational lensing of the cosmic microwave background generates a curl pattern in the observed polarization. This "B-mode" signal provides a measure of the projected mass distribution over the entire observable Universe and also acts as a contaminant for the measurement of primordial gravity-wave signals. In this Letter we present the first detection of gravitational lensing B modes, using first-season data from the polarization-sensitive receiver on the South Pole Telescope (SPTpol). We construct a template for the lensing B-mode signal by combining E-mode polarization measured by SPTpol with estimates of the lensing potential from a Herschel-SPIRE map of the cosmic infrared background. We compare this template to the B modes measured directly by SPTpol, finding a nonzero correlation at 7.7 sigma significance. The correlation has an amplitude and scale dependence consistent with theoretical expectations, is robust with respect to analysis choices, and constitutes the first measurement of a powerful cosmological observable.

引用

页数：6