Dataciencia

Colección SciELO Chile

Self-calibration of BICEP1 three-year data and constraints on astrophysical polarization rotation

Indexado

Scopus

SCOPUS_ID:84898759123

DOI

10.1103/PHYSREVD.89.062006

Año

2014

Tipo

Citas Totales

Autores Afiliación Chile

Instituciones Chile

% Participación
Internacional

Autores
Afiliación Extranjera

Instituciones
Extranjeras

Abstract

Cosmic microwave background (CMB) polarimeters aspire to measure the faint B-mode signature predicted to arise from inflationary gravitational waves. They also have the potential to constrain cosmic birefringence, rotation of the polarization of the CMB arising from parity-violating physics, which would produce nonzero expectation values for the CMB's temperature to B-mode correlation (TB) and E-mode to B-mode correlation (EB) spectra. However, instrumental systematic effects can also cause these TB and EB correlations to be nonzero. In particular, an overall miscalibration of the polarization orientation of the detectors produces TB and EB spectra which are degenerate with isotropic cosmological birefringence, while also introducing a small but predictable bias on the BB spectrum. We find that Bicep1 three-year spectra, which use our standard calibration of detector polarization angles from a dielectric sheet, are consistent with a polarization rotation of α=-2.77°±0.86°(statistical)±1.3°(systematic). We have revised the estimate of systematic error on the polarization rotation angle from the two-year analysis by comparing multiple calibration methods. We also account for the (negligible) impact of measured beam systematic effects. We investigate the polarization rotation for the Bicep1 100 GHz and 150 GHz bands separately to investigate theoretical models that produce frequency-dependent cosmic birefringence. We find no evidence in the data supporting either of these models or Faraday rotation of the CMB polarization by the Milky Way galaxy's magnetic field. If we assume that there is no cosmic birefringence, we can use the TB and EB spectra to calibrate detector polarization orientations, thus reducing bias of the cosmological B-mode spectrum from leaked E-modes due to possible polarization orientation miscalibration. After applying this "self-calibration" process, we find that the upper limit on the tensor-to-scalar ratio decreases slightly, from r<0.70 to r<0.65 at 95% confidence. © 2014 American Physical Society.

Revista

Revista	ISSN
Physical Review D	1550-7998

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Disciplinas de Investigación

WOS
Astronomy & Astrophysics
Physics, Particles & Fields

Scopus
Nuclear And High Energy Physics
Physics And Astronomy (Miscellaneous)

SciELO
Sin Disciplinas

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Publicaciones WoS (Ediciones: ISSHP, ISTP, AHCI, SSCI, SCI), Scopus, SciELO Chile.

Colaboración Institucional

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Autores - Afiliación

Ord.	Autor	Género	Institución - País
2	Miller, Nathan J.	Hombre	NASA Goddard Space Flight Center - Estados Unidos
3	Shimon, Meir	Hombre	University of California, San Diego - Estados Unidos Tel Aviv University - Israel
4	Barkats, D.	Hombre	European Southern Observatory Santiago - Chile
5	Bischoff, C.	-	Harvard-Smithsonian Center for Astrophysics - Estados Unidos
6	Buder, I.	-	Harvard-Smithsonian Center for Astrophysics - Estados Unidos
7	Keating, Brian	Hombre	University of California, San Diego - Estados Unidos
8	Kovac, J. M.	Hombre	Harvard-Smithsonian Center for Astrophysics - Estados Unidos
9	Jaffe, T. R.	Mujer	University of California, San Diego - Estados Unidos Prifysgol Cymru - Reino Unido California Institute of Technology - Estados Unidos Jet Propulsion Laboratory - Estados Unidos Princeton University - Estados Unidos Stanford University - Estados Unidos Kavli Institute for Particle Astrophysics and Cosmology - Estados Unidos University of Minnesota - Estados Unidos University of Wales - Reino Unido University of Minnesota Twin Cities - Estados Unidos
10	Aikin, R.	-	California Institute of Technology - Estados Unidos
11	Battle, J. O.	Hombre	Jet Propulsion Laboratory - Estados Unidos
12	Bierman, E. M.	Hombre	University of California, San Diego - Estados Unidos
13	Jaffe, T. R.	Mujer	University of California, San Diego - Estados Unidos Prifysgol Cymru - Reino Unido California Institute of Technology - Estados Unidos Jet Propulsion Laboratory - Estados Unidos Princeton University - Estados Unidos Stanford University - Estados Unidos Kavli Institute for Particle Astrophysics and Cosmology - Estados Unidos University of Minnesota - Estados Unidos University of Wales - Reino Unido University of Minnesota Twin Cities - Estados Unidos
14	Chiang, H. C.	-	University of KwaZulu-Natal - República de Sudáfrica
15	Jaffe, T. R.	Mujer	University of California, San Diego - Estados Unidos Prifysgol Cymru - Reino Unido California Institute of Technology - Estados Unidos Jet Propulsion Laboratory - Estados Unidos Princeton University - Estados Unidos Stanford University - Estados Unidos Kavli Institute for Particle Astrophysics and Cosmology - Estados Unidos University of Minnesota - Estados Unidos University of Wales - Reino Unido University of Minnesota Twin Cities - Estados Unidos
16	Duband, L.	Hombre	SBT - Francia
17	Filippini, J.	-	California Institute of Technology - Estados Unidos
18	Hivon, E.	Hombre	Institut d 'Astrophysique de Paris - Francia Institut d’Astrophysique de Paris - Francia
19	Holzapfel, W. L.	Hombre	University of California, Berkeley - Estados Unidos
20	Hristov, V. V.	Hombre	California Institute of Technology - Estados Unidos
21	Jaffe, T. R.	Mujer	University of California, San Diego - Estados Unidos Prifysgol Cymru - Reino Unido California Institute of Technology - Estados Unidos Jet Propulsion Laboratory - Estados Unidos Princeton University - Estados Unidos Stanford University - Estados Unidos Kavli Institute for Particle Astrophysics and Cosmology - Estados Unidos University of Minnesota - Estados Unidos University of Wales - Reino Unido University of Minnesota Twin Cities - Estados Unidos
22	Kernasovskiy, S. S.	-	Stanford University - Estados Unidos Kavli Institute for Particle Astrophysics and Cosmology - Estados Unidos
23	Jaffe, T. R.	Mujer	University of California, San Diego - Estados Unidos Prifysgol Cymru - Reino Unido California Institute of Technology - Estados Unidos Jet Propulsion Laboratory - Estados Unidos Princeton University - Estados Unidos Stanford University - Estados Unidos Kavli Institute for Particle Astrophysics and Cosmology - Estados Unidos University of Minnesota - Estados Unidos University of Wales - Reino Unido University of Minnesota Twin Cities - Estados Unidos
24	Leitch, Erik M.	Hombre	The University of Chicago - Estados Unidos
25	Jaffe, T. R.	Mujer	University of California, San Diego - Estados Unidos Prifysgol Cymru - Reino Unido California Institute of Technology - Estados Unidos Jet Propulsion Laboratory - Estados Unidos Princeton University - Estados Unidos Stanford University - Estados Unidos Kavli Institute for Particle Astrophysics and Cosmology - Estados Unidos University of Minnesota - Estados Unidos University of Wales - Reino Unido University of Minnesota Twin Cities - Estados Unidos
27	Nguyen, H. T.	Mujer	Jet Propulsion Laboratory - Estados Unidos
28	Ponthieu, N.	Hombre	Institut d'Astrophysique Spatiale - Francia
29	Jaffe, T. R.	Mujer	University of California, San Diego - Estados Unidos Prifysgol Cymru - Reino Unido California Institute of Technology - Estados Unidos Jet Propulsion Laboratory - Estados Unidos Princeton University - Estados Unidos Stanford University - Estados Unidos Kavli Institute for Particle Astrophysics and Cosmology - Estados Unidos University of Minnesota - Estados Unidos University of Wales - Reino Unido University of Minnesota Twin Cities - Estados Unidos
30	Richter, S.	Hombre	California Institute of Technology - Estados Unidos
31	Rocha, G.	-	California Institute of Technology - Estados Unidos Jet Propulsion Laboratory - Estados Unidos
32	Sheehy, C.	-	The University of Chicago - Estados Unidos
33	Matsumura, T.	-	High Energy Accelerator Research Organization, Tsukuba - Japón
33	Su, M.	-	Massachusetts Institute of Technology - Estados Unidos MIT Kavli Institute for Astrophysics and Space Research - Estados Unidos
34	Takahashi, Y. D.	Mujer	University of California, Berkeley - Estados Unidos
35	Tolan, J. E.	-	Stanford University - Estados Unidos Kavli Institute for Particle Astrophysics and Cosmology - Estados Unidos
36	Jaffe, T. R.	Mujer	University of California, San Diego - Estados Unidos Prifysgol Cymru - Reino Unido California Institute of Technology - Estados Unidos Jet Propulsion Laboratory - Estados Unidos Princeton University - Estados Unidos Stanford University - Estados Unidos Kavli Institute for Particle Astrophysics and Cosmology - Estados Unidos University of Minnesota - Estados Unidos University of Wales - Reino Unido University of Minnesota Twin Cities - Estados Unidos

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Financiamiento

Fuente
Swedish Council for Working Life and Social Research

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