A Measurement of the Degree-scale CMB B-mode Angular Power Spectrum with POLARBEAR

被引:52
作者
Adachi, S. [1 ]
Faundez, M. A. O. Aguilar [2 ,3 ]
Arnold, K. [4 ]
Baccigalupi, C. [5 ,6 ,7 ]
Barron, D. [8 ]
Beck, D. [9 ]
Beckman, S. [10 ]
Bianchini, F. [11 ]
Boettger, D. [12 ,13 ]
Borrill, J. [14 ,15 ]
Carron, J. [16 ]
Chapman, S. [17 ]
Cheung, K. [10 ]
Chinone, Y. [10 ,18 ,19 ]
Crowley, K. [10 ]
Cukierman, A. [20 ,21 ]
Dobbs, M. [22 ,23 ]
El Bouhargani, H. [9 ]
Elleflot, T. [4 ]
Errard, J. [9 ]
Fabbian, G. [16 ]
Feng, C. [24 ]
Fujino, T. [25 ]
Galitzki, N. [4 ]
Goeckner-Wald, N. [10 ,21 ]
Groh, J. [10 ]
Hall, G. [26 ]
Halverson, N. [27 ,28 ,29 ]
Hamada, T. [30 ]
Hasegawa, M. [31 ]
Hazumi, M. [18 ,31 ,32 ,33 ]
Hill, C. A. [10 ,34 ]
Howe, L. [4 ]
Inoue, Y. [31 ,35 ,36 ]
Jaehnig, G. [27 ,28 ]
Jeong, O. [10 ]
Kaneko, D. [18 ]
Katayama, N. [18 ]
Keating, B. [4 ]
Keskitalo, R. [10 ,14 ,15 ]
Kikuchi, S. [25 ]
Kisner, T. [14 ]
Krachmalnicoff, N. [5 ]
Kusaka, A. [19 ,34 ,37 ,38 ]
Lee, A. T. [10 ,34 ]
Leon, D. [4 ]
Linder, E. [15 ,34 ]
Lowry, L. N. [4 ]
Mangu, A. [10 ]
Matsuda, F. [18 ]
机构
[1] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan
[2] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA
[3] Univ Chile, Dept Sica, FCFM, Blanco Encalada 2008, Santiago, Chile
[4] Univ Calif San Diego, Dept Phys, San Diego, CA 92093 USA
[5] SISSA, Int Sch Adv Studies, Via Bonomea 265, I-34136 Trieste, Italy
[6] Inst Fundamental Phys Universe IFPU, Via Beirut 2, I-34014 Trieste, Italy
[7] Natl Inst Nucl Phys INFN, Sez Trieste, Padriciano 99, I-34149 Trieste, Italy
[8] Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA
[9] Univ Paris Diderot, Sorbonne Paris Cite, CNRS IN2P3, CEA Irfu,Obs Paris,AstroParticule & Cosmol APC, Paris, France
[10] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA
[11] Univ Melbourne, Sch Phys, Parkville, Vic 3010, Australia
[12] Pontificia Univ Catolica Chile, Fac Fis, Inst Astrofis, Av Vicuna Mackenna 4860, Santiago 7820436, Chile
[13] Pontificia Univ Catolica Chile, Fac Fis, Ctr Astroingn, Av Vicuna Mackenna 4860, Santiago 7820436, Chile
[14] Lawrence Berkeley Natl Lab, Computat Cosmol Ctr, Berkeley, CA 94720 USA
[15] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA
[16] Univ Sussex, Dept Phys & Astron, Brighton BN1 9QH, E Sussex, England
[17] Dalhousie Univ, Dept Phys & Atmospher Sci, Halifax, NS B3H 4R2, Canada
[18] Univ Tokyo, Kavli Inst Phys & Math Universe Kavli IPMU, UTIAS, WPI, Kashiwa, Chiba 2778583, Japan
[19] Univ Calif Berkeley, Berkeley Satellite, Kavli Inst Phys & Math Universe Kavli IPMU, WPI, Berkeley, CA 94720 USA
[20] Kavli Inst Particle Astrophys & Cosmol, SLAC Natl Accelerator Lab, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA
[21] Stanford Univ, Dept Phys, Stanford, CA 94305 USA
[22] McGill Univ, Phys Dept, Montreal, PQ H3A 0G4, Canada
[23] Canadian Inst Adv Res CIfAR, Toronto, ON M5G 1M1, Canada
[24] Univ Illinois, Dept Phys, 1110 W Green St, Urbana, IL 61801 USA
[25] Yokohama Natl Univ, Yokohama, Kanagawa 2408501, Japan
[26] Univ Minnesota, Minnesota Inst Astrophys, Minneapolis, MN 55455 USA
[27] Univ Colorado, Ctr Astrophys & Space Astron, Campus Box 391, Boulder, CO 80309 USA
[28] Univ Colorado, Dept Astrophys & Planetary Sci, Boulder, CO 80309 USA
[29] Univ Colorado, Dept Phys, Boulder, CO 80309 USA
[30] Tohoku Univ, Astron Inst, Sendai, Miyagi 9800845, Japan
[31] High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801, Japan
[32] Japan Aerosp Explorat Agcy JAXA, Inst Space & Astronaut Sci ISAS, Sagamihara, Kanagawa 2520222, Japan
[33] Grad Univ Adv Studies, SOKENDAI, Hayama, Kanagawa 2400193, Japan
[34] Lawrence Berkeley Natl Lab, Div Phys, Berkeley, CA 94720 USA
[35] Natl Cent Univ, Dept Phys, Taoyuan 32002, Taiwan
[36] Natl Cent Univ, Ctr High Energy & High Field Phys, Taoyuan 32002, Taiwan
[37] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan
[38] Univ Tokyo, Res Ctr Early Universe, Sch Sci, Tokyo 1130033, Japan
[39] Inst Fundamental Phys Universe IFPU, Via Beirut 2, I-34151 Grignano, TS, Italy
[40] Ist Nazl Fis Nucl, Natl Inst Nucl Phys, Sez Trieste, Via Valerio 2, I-34127 Trieste, Italy
[41] Univ Calif Berkeley, Radio Astron Lab, Berkeley, CA 94720 USA
基金
澳大利亚研究理事会; 加拿大自然科学与工程研究理事会; 美国国家科学基金会; 欧洲研究理事会;
关键词
Cosmic microwave background radiation; Cosmic inflation; Cosmology; Observational cosmology; POLARIZATION; STATISTICS;
D O I
10.3847/1538-4357/ab8f24
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present a measurement of theB-mode polarization power spectrum of the cosmic microwave background (CMB) using data taken from 2014 July to 2016 December with thePolarbearexperiment. The CMB power spectra are measured using observations at 150 GHz with an instantaneous array sensitivity of<CDATA<ion a 670 square degree patch of sky centered at (R.A., decl.) = (+0(h)12(m)0(s), -59 degrees 18 '). A continuously rotating half-wave plate is used to modulate polarization and to suppress low-frequency noise. We achieve 32 mu K arcmin effective polarization map noise with a knee in sensitivity ofl = 90, where the inflationary gravitational-wave signal is expected to peak. The measuredB-mode power spectrum is consistent with a ?CDM lensing and single dust component foreground model over a range of multipoles 50 <= l <= 600. The data disfavor zero sigma using thisl range ofPolarbeardata alone. We cross-correlate our data with Planck full mission 143, 217, and 353 GHz frequency maps and find the low-l B-mode power in the combined data set to be consistent with thermal dust emission. We place an upper limit on the tensor-to-scalar ratior < 0.90 at the 95% confidence level after marginalizing over foregrounds.
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页数:23
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