A Measurement of the Cosmic Microwave Background B-mode Polarization Power Spectrum at Subdegree Scales from Two Years of polarbear Data

P. A.R. Ade; M. Aguilar; Y. Akiba; K. Arnold; C. Baccigalupi; D. Barron; D. Beck; F. Bianchini; D. Boettger; J. Borrill; S. Chapman; Y. Chinone; K. Crowley; A. Cukierman; R. Dünner; M. Dobbs; A. Ducout; T. Elleflot; J. Errard; G. Fabbian; S. M. Feeney; C. Feng; T. Fujino; N. Galitzki; A. Gilbert; N. Goeckner-Wald; J. C. Groh; G. Hall; N. Halverson; T. Hamada; M. Hasegawa; M. Hazumi; C. A. Hill; L. Howe; Y. Inoue; G. Jaehnig; A. H. Jaffe; O. Jeong; D. Kaneko; N. Katayama; B. Keating; R. Keskitalo; T. Kisner; N. Krachmalnicoff; A. Kusaka; M. Le Jeune; A. T. Lee; E. M. Leitch; D. Leon; E. Linder; L. Lowry; F. Matsuda; T. Matsumura; Y. Minami; J. Montgomery; M. Navaroli; H. Nishino; H. Paar; J. Peloton; A. T.P. Pham; D. Poletti; G. Puglisi; C. L. Reichardt; P. L. Richards; C. Ross; Y. Segawa; B. D. Sherwin; M. Silva-Feaver; P. Siritanasak; N. Stebor; R. Stompor; A. Suzuki; O. Tajima; S. Takakura; S. Takatori; D. Tanabe; G. P. Teply; T. Tomaru; C. Tucker; N. Whitehorn; A. Zahn

doi:10.3847/1538-4357/aa8e9f

A Measurement of the Cosmic Microwave Background B-mode Polarization Power Spectrum at Subdegree Scales from Two Years of polarbear Data

P. A.R. Ade, M. Aguilar, Y. Akiba, K. Arnold, C. Baccigalupi, D. Barron, D. Beck, F. Bianchini, D. Boettger, J. Borrill, S. Chapman, Y. Chinone, K. Crowley, A. Cukierman, R. Dünner, M. Dobbs, A. Ducout, T. Elleflot, J. Errard, G. FabbianS. M. Feeney, C. Feng, T. Fujino, N. Galitzki, A. Gilbert, N. Goeckner-Wald, J. C. Groh, G. Hall, N. Halverson, T. Hamada, M. Hasegawa, M. Hazumi, C. A. Hill, L. Howe, Y. Inoue, G. Jaehnig, A. H. Jaffe, O. Jeong, D. Kaneko, N. Katayama, B. Keating, R. Keskitalo, T. Kisner, N. Krachmalnicoff, A. Kusaka, M. Le Jeune, A. T. Lee, E. M. Leitch, D. Leon, E. Linder, L. Lowry, F. Matsuda, T. Matsumura, Y. Minami, J. Montgomery, M. Navaroli, H. Nishino, H. Paar, J. Peloton, A. T.P. Pham, D. Poletti, G. Puglisi, C. L. Reichardt, P. L. Richards, C. Ross, Y. Segawa, B. D. Sherwin, M. Silva-Feaver, P. Siritanasak, N. Stebor, R. Stompor, A. Suzuki, O. Tajima, S. Takakura, S. Takatori, D. Tanabe, G. P. Teply, T. Tomaru, C. Tucker, N. Whitehorn, A. Zahn

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Abstract

We report an improved measurement of the cosmic microwave background B-mode polarization power spectrum with the Polarbear experiment at 150 GHz. By adding new data collected during the second season of observations (2013-2014) to re-analyzed data from the first season (2012-2013), we have reduced twofold the band-power uncertainties. The band powers are reported over angular multipoles 500 ≤ ℓ ≤ 2100, where the dominant B-mode signal is expected to be due to the gravitational lensing of E-modes. We reject the null hypothesis of no B-mode polarization at a confidence of 3.1σ including both statistical and systematic uncertainties. We test the consistency of the measured B-modes with the Λ Cold Dark Matter (ΛCDM) framework by fitting for a single lensing amplitude parameter A _L = 0.60 +0.26_-0.24(stat)^+0.00_-0.04 (inst) ± 0.14(foreground) ± 0.04(multi), where A _L = 1 relative to the Planck 2015 best-fit model prediction. We obtain ±0.14(foreground) ±0.04(multi), where is the fiducial ΛCDM value.

Original language	English
Article number	121
Journal	Astrophysical Journal
Volume	848
Issue number	2
DOIs	https://doi.org/10.3847/1538-4357/aa8e9f
Publication status	Published - Oct 20 2017
Externally published	Yes

Keywords

cosmic background radiation
cosmology: observations
large-scale structure of universe

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.3847/1538-4357/aa8e9f

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Ade, P. A. R., Aguilar, M., Akiba, Y., Arnold, K., Baccigalupi, C., Barron, D., Beck, D., Bianchini, F., Boettger, D., Borrill, J., Chapman, S., Chinone, Y., Crowley, K., Cukierman, A., Dünner, R., Dobbs, M., Ducout, A., Elleflot, T., Errard, J., ... Zahn, A. (2017). A Measurement of the Cosmic Microwave Background B-mode Polarization Power Spectrum at Subdegree Scales from Two Years of polarbear Data. Astrophysical Journal, 848(2), [121]. https://doi.org/10.3847/1538-4357/aa8e9f

Ade, PAR, Aguilar, M, Akiba, Y, Arnold, K, Baccigalupi, C, Barron, D, Beck, D, Bianchini, F, Boettger, D, Borrill, J, Chapman, S, Chinone, Y, Crowley, K, Cukierman, A, Dünner, R, Dobbs, M, Ducout, A, Elleflot, T, Errard, J, Fabbian, G, Feeney, SM, Feng, C, Fujino, T, Galitzki, N, Gilbert, A, Goeckner-Wald, N, Groh, JC, Hall, G, Halverson, N, Hamada, T, Hasegawa, M, Hazumi, M, Hill, CA, Howe, L, Inoue, Y, Jaehnig, G, Jaffe, AH, Jeong, O, Kaneko, D, Katayama, N, Keating, B, Keskitalo, R, Kisner, T, Krachmalnicoff, N, Kusaka, A, Jeune, ML, Lee, AT, Leitch, EM, Leon, D, Linder, E, Lowry, L, Matsuda, F, Matsumura, T, Minami, Y, Montgomery, J, Navaroli, M, Nishino, H, Paar, H, Peloton, J, Pham, ATP, Poletti, D, Puglisi, G, Reichardt, CL, Richards, PL, Ross, C, Segawa, Y, Sherwin, BD, Silva-Feaver, M, Siritanasak, P, Stebor, N, Stompor, R, Suzuki, A, Tajima, O, Takakura, S, Takatori, S, Tanabe, D, Teply, GP, Tomaru, T, Tucker, C, Whitehorn, N & Zahn, A 2017, 'A Measurement of the Cosmic Microwave Background B-mode Polarization Power Spectrum at Subdegree Scales from Two Years of polarbear Data', Astrophysical Journal, vol. 848, no. 2, 121. https://doi.org/10.3847/1538-4357/aa8e9f

@article{b54f734c32c94852971b34f7153f3d27,

title = "A Measurement of the Cosmic Microwave Background B-mode Polarization Power Spectrum at Subdegree Scales from Two Years of polarbear Data",

abstract = "We report an improved measurement of the cosmic microwave background B-mode polarization power spectrum with the Polarbear experiment at 150 GHz. By adding new data collected during the second season of observations (2013-2014) to re-analyzed data from the first season (2012-2013), we have reduced twofold the band-power uncertainties. The band powers are reported over angular multipoles 500 ≤ ℓ ≤ 2100, where the dominant B-mode signal is expected to be due to the gravitational lensing of E-modes. We reject the null hypothesis of no B-mode polarization at a confidence of 3.1σ including both statistical and systematic uncertainties. We test the consistency of the measured B-modes with the Λ Cold Dark Matter (ΛCDM) framework by fitting for a single lensing amplitude parameter A L = 0.60 +0.26-0.24(stat)+0.00-0.04 (inst) ± 0.14(foreground) ± 0.04(multi), where A L = 1 relative to the Planck 2015 best-fit model prediction. We obtain ±0.14(foreground) ±0.04(multi), where is the fiducial ΛCDM value.",

keywords = "cosmic background radiation, cosmology: observations, large-scale structure of universe",

author = "Ade, {P. A.R.} and M. Aguilar and Y. Akiba and K. Arnold and C. Baccigalupi and D. Barron and D. Beck and F. Bianchini and D. Boettger and J. Borrill and S. Chapman and Y. Chinone and K. Crowley and A. Cukierman and R. D{\"u}nner and M. Dobbs and A. Ducout and T. Elleflot and J. Errard and G. Fabbian and Feeney, {S. M.} and C. Feng and T. Fujino and N. Galitzki and A. Gilbert and N. Goeckner-Wald and Groh, {J. C.} and G. Hall and N. Halverson and T. Hamada and M. Hasegawa and M. Hazumi and Hill, {C. A.} and L. Howe and Y. Inoue and G. Jaehnig and Jaffe, {A. H.} and O. Jeong and D. Kaneko and N. Katayama and B. Keating and R. Keskitalo and T. Kisner and N. Krachmalnicoff and A. Kusaka and Jeune, {M. Le} and Lee, {A. T.} and Leitch, {E. M.} and D. Leon and E. Linder and L. Lowry and F. Matsuda and T. Matsumura and Y. Minami and J. Montgomery and M. Navaroli and H. Nishino and H. Paar and J. Peloton and Pham, {A. T.P.} and D. Poletti and G. Puglisi and Reichardt, {C. L.} and Richards, {P. L.} and C. Ross and Y. Segawa and Sherwin, {B. D.} and M. Silva-Feaver and P. Siritanasak and N. Stebor and R. Stompor and A. Suzuki and O. Tajima and S. Takakura and S. Takatori and D. Tanabe and Teply, {G. P.} and T. Tomaru and C. Tucker and N. Whitehorn and A. Zahn",

note = "Funding Information: J.P. acknowledges support from the Science and Technology Facilities Council (grant number ST/L000652/1) and from the European Research Council under the European Union{\textquoteright}s Seventh Framework Programme (FP/2007-2013)/ERC Grant Agreement No. [616170]. The POLARBEAR project is funded by the National Science Foundation under grants No. AST-0618398 and No. AST-1212230. The James Ax Observatory operates in the Parque Astron{\'o}mico Atacama in northern Chile under the auspices of the Comisi{\'o}n Nacional de Investigaci{\'o}n Cient{\'i}fica y Tecnol{\'o}gica de Chile (CONICYT). This research used resources of the Central Computing System, owned and operated by the Computing Research Center at KEK, the HPCI system (Project ID:hp150132), and the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility supported by the Office of Science of the U.S. Department of Energy under contract No. DE-AC02-05CH11231. In Japan, this work was supported by MEXT KAKENHI grant Nos. JP15H05891 and 21111002, and JSPS KAKENHI grant Nos. JP26220709, JP24111715, and JP26800125. This work was supported by World Premier International Research Center Initiative (WPI), MEXT, Japan. This work was supported by JSPS Core-to-Core Program. In Italy, this work was supported by the RADIOFORE-GROUNDS grant of the European Union{\textquoteright}s Horizon 2020 research and innovation programme (COMPET-05-2015, grant agreement number 687312) as well as by the INDARK INFN Initiative. The McGill authors acknowledge funding from the Natural Sciences and Engineering Research Council of Canada and the Canadian Institute for Advanced Research. J.P. acknowledges support from the Science and Technology Facilities Council (grant number ST/L000652/1) and from the European Research Council under the European Union{\textquoteright}s Seventh Framework Programme (FP/2007-2013)/ERC Grant Agreement No. [616170]. G.F. acknowledges support from the CNES postdoctoral program. D.B. acknowledges support from NSF grant AST-1501422. D.B. acknowledges support from FONDECYT postdoctoral grant number 3150504. C.F. acknowledges support from grants HST-AR-13886.001-A, IGPP LANL 368641, NASA NNX16AF39G, and the Ax Foundation for Cosmology at UC Irvine. C.R. acknowledges support from an Australian Research Council{\textquoteright}s Future Fellowship (FT150100074). M.A. acknowledges support from CON-ICYT UC Berkeley-Chile Seed Grant (CLAS fund) Number 77047, Fondecyt Project 1130777, the DFI Postgraduate Scholarship Program, and the DFI Postgraduate Competitive Fund for Support in the Attendance to Scientific Events. R.D. acknowledges support from CONICYT grants FONDECYT Publisher Copyright: {\textcopyright} 2017. The American Astronomical Society. All rights reserved.",

year = "2017",

month = oct,

day = "20",

doi = "10.3847/1538-4357/aa8e9f",

language = "English",

volume = "848",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "IOP Publishing Ltd.",

number = "2",

}

TY - JOUR

T1 - A Measurement of the Cosmic Microwave Background B-mode Polarization Power Spectrum at Subdegree Scales from Two Years of polarbear Data

AU - Ade, P. A.R.

AU - Aguilar, M.

AU - Akiba, Y.

AU - Arnold, K.

AU - Baccigalupi, C.

AU - Barron, D.

AU - Beck, D.

AU - Bianchini, F.

AU - Boettger, D.

AU - Borrill, J.

AU - Chapman, S.

AU - Chinone, Y.

AU - Crowley, K.

AU - Cukierman, A.

AU - Dünner, R.

AU - Dobbs, M.

AU - Ducout, A.

AU - Elleflot, T.

AU - Errard, J.

AU - Fabbian, G.

AU - Feeney, S. M.

AU - Feng, C.

AU - Fujino, T.

AU - Galitzki, N.

AU - Gilbert, A.

AU - Goeckner-Wald, N.

AU - Groh, J. C.

AU - Hall, G.

AU - Halverson, N.

AU - Hamada, T.

AU - Hasegawa, M.

AU - Hazumi, M.

AU - Hill, C. A.

AU - Howe, L.

AU - Inoue, Y.

AU - Jaehnig, G.

AU - Jaffe, A. H.

AU - Jeong, O.

AU - Kaneko, D.

AU - Katayama, N.

AU - Keating, B.

AU - Keskitalo, R.

AU - Kisner, T.

AU - Krachmalnicoff, N.

AU - Kusaka, A.

AU - Jeune, M. Le

AU - Lee, A. T.

AU - Leitch, E. M.

AU - Leon, D.

AU - Linder, E.

AU - Lowry, L.

AU - Matsuda, F.

AU - Matsumura, T.

AU - Minami, Y.

AU - Montgomery, J.

AU - Navaroli, M.

AU - Nishino, H.

AU - Paar, H.

AU - Peloton, J.

AU - Pham, A. T.P.

AU - Poletti, D.

AU - Puglisi, G.

AU - Reichardt, C. L.

AU - Richards, P. L.

AU - Ross, C.

AU - Segawa, Y.

AU - Sherwin, B. D.

AU - Silva-Feaver, M.

AU - Siritanasak, P.

AU - Stebor, N.

AU - Stompor, R.

AU - Suzuki, A.

AU - Tajima, O.

AU - Takakura, S.

AU - Takatori, S.

AU - Tanabe, D.

AU - Teply, G. P.

AU - Tomaru, T.

AU - Tucker, C.

AU - Whitehorn, N.

AU - Zahn, A.

N1 - Funding Information: J.P. acknowledges support from the Science and Technology Facilities Council (grant number ST/L000652/1) and from the European Research Council under the European Union’s Seventh Framework Programme (FP/2007-2013)/ERC Grant Agreement No. [616170]. The POLARBEAR project is funded by the National Science Foundation under grants No. AST-0618398 and No. AST-1212230. The James Ax Observatory operates in the Parque Astronómico Atacama in northern Chile under the auspices of the Comisión Nacional de Investigación Científica y Tecnológica de Chile (CONICYT). This research used resources of the Central Computing System, owned and operated by the Computing Research Center at KEK, the HPCI system (Project ID:hp150132), and the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility supported by the Office of Science of the U.S. Department of Energy under contract No. DE-AC02-05CH11231. In Japan, this work was supported by MEXT KAKENHI grant Nos. JP15H05891 and 21111002, and JSPS KAKENHI grant Nos. JP26220709, JP24111715, and JP26800125. This work was supported by World Premier International Research Center Initiative (WPI), MEXT, Japan. This work was supported by JSPS Core-to-Core Program. In Italy, this work was supported by the RADIOFORE-GROUNDS grant of the European Union’s Horizon 2020 research and innovation programme (COMPET-05-2015, grant agreement number 687312) as well as by the INDARK INFN Initiative. The McGill authors acknowledge funding from the Natural Sciences and Engineering Research Council of Canada and the Canadian Institute for Advanced Research. J.P. acknowledges support from the Science and Technology Facilities Council (grant number ST/L000652/1) and from the European Research Council under the European Union’s Seventh Framework Programme (FP/2007-2013)/ERC Grant Agreement No. [616170]. G.F. acknowledges support from the CNES postdoctoral program. D.B. acknowledges support from NSF grant AST-1501422. D.B. acknowledges support from FONDECYT postdoctoral grant number 3150504. C.F. acknowledges support from grants HST-AR-13886.001-A, IGPP LANL 368641, NASA NNX16AF39G, and the Ax Foundation for Cosmology at UC Irvine. C.R. acknowledges support from an Australian Research Council’s Future Fellowship (FT150100074). M.A. acknowledges support from CON-ICYT UC Berkeley-Chile Seed Grant (CLAS fund) Number 77047, Fondecyt Project 1130777, the DFI Postgraduate Scholarship Program, and the DFI Postgraduate Competitive Fund for Support in the Attendance to Scientific Events. R.D. acknowledges support from CONICYT grants FONDECYT Publisher Copyright: © 2017. The American Astronomical Society. All rights reserved.

PY - 2017/10/20

Y1 - 2017/10/20

N2 - We report an improved measurement of the cosmic microwave background B-mode polarization power spectrum with the Polarbear experiment at 150 GHz. By adding new data collected during the second season of observations (2013-2014) to re-analyzed data from the first season (2012-2013), we have reduced twofold the band-power uncertainties. The band powers are reported over angular multipoles 500 ≤ ℓ ≤ 2100, where the dominant B-mode signal is expected to be due to the gravitational lensing of E-modes. We reject the null hypothesis of no B-mode polarization at a confidence of 3.1σ including both statistical and systematic uncertainties. We test the consistency of the measured B-modes with the Λ Cold Dark Matter (ΛCDM) framework by fitting for a single lensing amplitude parameter A L = 0.60 +0.26-0.24(stat)+0.00-0.04 (inst) ± 0.14(foreground) ± 0.04(multi), where A L = 1 relative to the Planck 2015 best-fit model prediction. We obtain ±0.14(foreground) ±0.04(multi), where is the fiducial ΛCDM value.

AB - We report an improved measurement of the cosmic microwave background B-mode polarization power spectrum with the Polarbear experiment at 150 GHz. By adding new data collected during the second season of observations (2013-2014) to re-analyzed data from the first season (2012-2013), we have reduced twofold the band-power uncertainties. The band powers are reported over angular multipoles 500 ≤ ℓ ≤ 2100, where the dominant B-mode signal is expected to be due to the gravitational lensing of E-modes. We reject the null hypothesis of no B-mode polarization at a confidence of 3.1σ including both statistical and systematic uncertainties. We test the consistency of the measured B-modes with the Λ Cold Dark Matter (ΛCDM) framework by fitting for a single lensing amplitude parameter A L = 0.60 +0.26-0.24(stat)+0.00-0.04 (inst) ± 0.14(foreground) ± 0.04(multi), where A L = 1 relative to the Planck 2015 best-fit model prediction. We obtain ±0.14(foreground) ±0.04(multi), where is the fiducial ΛCDM value.

KW - cosmic background radiation

KW - cosmology: observations

KW - large-scale structure of universe

UR - http://www.scopus.com/inward/record.url?scp=85032796298&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85032796298&partnerID=8YFLogxK

U2 - 10.3847/1538-4357/aa8e9f

DO - 10.3847/1538-4357/aa8e9f

M3 - Article

AN - SCOPUS:85032796298

SN - 0004-637X

VL - 848

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2

M1 - 121

ER -

A Measurement of the Cosmic Microwave Background B-mode Polarization Power Spectrum at Subdegree Scales from Two Years of polarbear Data

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