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Measurement of the Cosmic Microwave Background Polarization Lensing Power Spectrum from Two Years of POLARBEAR Data

by Puglisi, Giuseppe , Baccigalupi, Carlo , Kikuchi, Shuhei , Goeckner-Wald, Neil , Sherwin, Blake D , Hirose, Haruaki , Siritanasak, Praween , Jeong, Oliver , Lindsay Ng Lowry , Anh Thi Phuong Pham , Reichardt, Christian L , Matsumura, Tomotake , Arnold, Kam , Carron, Julien , Cheung, Kolen , Beckman, Shawn , Nishino, Haruki , Fujino, Takuro , Beck, Dominic , Linder, Eric , Poletti, Davide , Stompor, Radek , Chang, Feng , Kusaka, Akito , Tanabe, Daiki , Hill, Charles A , Chinone, Yuji , Takatori, Sayuri , Minami, Yuto , Hamada, Takaho , Lee, Adrian T , Segawa, Yuuko , Leon, David , Hasegawa, Masaya , Fabbian, Giulio , Barron, Darcy , Errard, Josquin , Teply, Grant P , Silva-Feaver, Maximiliano , Katayama, Nobuhiko , Matsuda, Frederick , Bianchini, Federico , Suzuki, Aritoki , Hazumi, Masashi , Tajima, Osamu , Mario Aguilar Faúndez , Tsai, Calvin , Hamza El Bouhargani , Navaroli, Martin , Tucker Elleflot , Keating, Brian

in Big Bang theory / Cold dark matter / Confidence / Cosmic microwave background / Cosmology / Dark matter / Gravitational lenses / Polarization / Sky surveys (astronomy)

2020

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Measurement of the Cosmic Microwave Background Polarization Lensing Power Spectrum from Two Years of POLARBEAR Data

in Big Bang theory / Cold dark matter / Confidence / Cosmic microwave background / Cosmology / Dark matter / Gravitational lenses / Polarization / Sky surveys (astronomy)

2020

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Measurement of the Cosmic Microwave Background Polarization Lensing Power Spectrum from Two Years of POLARBEAR Data

in Big Bang theory / Cold dark matter / Confidence / Cosmic microwave background / Cosmology / Dark matter / Gravitational lenses / Polarization / Sky surveys (astronomy)

2020

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Paper

Measurement of the Cosmic Microwave Background Polarization Lensing Power Spectrum from Two Years of POLARBEAR Data

Puglisi, Giuseppe,

Baccigalupi, Carlo,

Kikuchi, Shuhei,

Goeckner-Wald, Neil,

Sherwin, Blake D,

Hirose, Haruaki,

Siritanasak, Praween,

Jeong, Oliver,

Lindsay Ng Lowry,

Anh Thi Phuong Pham,

Reichardt, Christian L,

Matsumura, Tomotake,

Arnold, Kam,

Carron, Julien,

Cheung, Kolen,

Beckman, Shawn,

Nishino, Haruki,

Fujino, Takuro,

Beck, Dominic,

Linder, Eric,

Poletti, Davide,

Stompor, Radek,

Chang, Feng,

Kusaka, Akito,

Tanabe, Daiki,

Hill, Charles A,

Chinone, Yuji,

Takatori, Sayuri,

Minami, Yuto,

Hamada, Takaho,

Lee, Adrian T,

Segawa, Yuuko,

Leon, David,

Hasegawa, Masaya,

Fabbian, Giulio,

Barron, Darcy,

Errard, Josquin,

Teply, Grant P,

Silva-Feaver, Maximiliano,

Katayama, Nobuhiko,

Matsuda, Frederick,

Bianchini, Federico,

Suzuki, Aritoki,

Hazumi, Masashi,

Tajima, Osamu,

Mario Aguilar Faúndez,

Tsai, Calvin,

Hamza El Bouhargani,

Navaroli, Martin,

Tucker Elleflot,

Keating, Brian

2020

Overview

We present a measurement of the gravitational lensing deflection power spectrum reconstructed with two seasons cosmic microwave background polarization data from the POLARBEAR experiment. Observations were taken at 150 GHz from 2012 to 2014 which survey three patches of sky totaling 30 square degrees. We test the consistency of the lensing spectrum with a Cold Dark Matter (CDM) cosmology and reject the no-lensing hypothesis at a confidence of 10.9 sigma including statistical and systematic uncertainties. We observe a value of A_L = 1.33 +/- 0.32 (statistical) +/- 0.02 (systematic) +/- 0.07 (foreground) using all polarization lensing estimators, which corresponds to a 24% accurate measurement of the lensing amplitude. Compared to the analysis of the first year data, we have improved the breadth of both the suite of null tests and the error terms included in the estimation of systematic contamination.

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Publisher

Cornell University Library, arXiv.org

Subject

Big Bang theory

/ Cold dark matter

/ Confidence

/ Cosmic microwave background

/ Cosmology

/ Dark matter

/ Gravitational lenses