Observed parity-odd CMB temperature bispectrum

被引：38

作者：

Shiraishi, Maresuke ^{[1
,2
]}

Liguori, Michele ^{[1
,2
]}

Fergusson, James R. ^{[3
]}

机构：

[1] Univ Padua, Dipartimento Fis & Astron G Galilei, I-35131 Padua, Italy

[2] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy

[3] Univ Cambridge, Dept Appl Math & Theoret Phys, Ctr Theoret Cosmol, Cambridge CB3 0WA, England

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2015年 / 01期

关键词：

non-gaussianity; inflation; CMBR experiments; CMBR theory; PROBE WMAP OBSERVATIONS; PRIMORDIAL NON-GAUSSIANITY; POLARIZATION ANISOTROPIES; FAST ESTIMATOR; MICROWAVE;

D O I：

10.1088/1475-7516/2015/01/007

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Parity-odd non-Gaussianities create a variety of temperature bispectra in the cosmic microwave background (CMB), defined in the domain: l(1) + l(2) + l(3) = odd. These models are yet unconstrained in the literature, that so far focused exclusively on the more common parity-even scenarios. In this work, we provide the first experimental constraints on parity-odd bispectrum signals in WMAP 9-year temperature data, using a separable modal parity-odd estimator. Comparing theoretical bispectrum templates to the observed bispectrum, we place constraints on the so-called nonlineality parameters of parity-odd tensor non-Gaussianities predicted by several Early Universe models. Our technique also generates a model-independent, smoothed reconstruction of the bispectrum of the data for parity-odd configurations.

引用

页数：17

共 38 条

[1] Planck 2013 results. XXIV. Constraints on primordial non-Gaussianity [J].

Ade, P. A. R. ;

Aghanim, N. ;

Armitage-Caplan, C. ;

Arnaud, M. ;

Ashdown, M. ;

Atrio-Barandela, F. ;

Aumont, J. ;

Baccigalupi, C. ;

Banday, A. J. ;

Barreiro, R. B. ;

Bartlett, J. G. ;

Bartolo, N. ;

Battaner, E. ;

Benabed, K. ;

Benoit, A. ;

Benoit-Levy, A. ;

Bernard, J. -P. ;

Bersanelli, M. ;

Bielewicz, P. ;

Bobin, J. ;

Bock, J. J. ;

Bonaldi, A. ;

Bonavera, L. ;

Bond, J. R. ;

Borrill, J. ;

Bouchet, F. R. ;

Bridges, M. ;

Bucher, M. ;

Burigana, C. ;

Butler, R. C. ;

Cardoso, J. -F. ;

Catalano, A. ;

Challinor, A. ;

Chamballu, A. ;

Chiang, H. C. ;

Chiang, L. -Y ;

Christensen, P. R. ;

Church, S. ;

Clements, D. L. ;

Colombi, S. ;

Colombo, L. P. L. ;

Couchot, F. ;

Coulais, A. ;

Crill, B. P. ;

Curto, A. ;

Cuttaia, F. ;

Danese, L. ;

Davies, R. D. ;

Davis, R. J. ;

de Bernardis, P. .

ASTRONOMY & ASTROPHYSICS, 2014, 571

[2]

Andre P., ARXIV13062259

[3] PRISM (Polarized Radiation Imaging and Spectroscopy Mission): an extended white paper [J].

Andre, Philippe ;

Baccigalupi, Carlo ;

Banday, Anthony ;

Barbosa, Domingos ;

Barreiro, Belen ;

Bartlett, James ;

Bartolo, Nicola ;

Battistelli, Elia ;

Battye, Richard ;

Bendo, George ;

Benoit, Alain ;

Bernard, Jean-Philippe ;

Bersanelli, Marco ;

Bethermin, Matthieu ;

Bielewicz, Pawel ;

Bonaldi, Anna ;

Bouchet, Francois ;

Boulanger, Francois ;

Brand, Jan ;

Bucher, Martin ;

Burigana, Carlo ;

Cai, Zhen-Yi ;

Camus, Philippe ;

Casas, Francisco ;

Casasola, Viviana ;

Castex, Guillaume ;

Challinor, Anthony ;

Chluba, Jens ;

Chon, Gayoung ;

Colafrancesco, Sergio ;

Comis, Barbara ;

Cuttaia, Francesco ;

D'Alessandro, Giuseppe ;

Da Silva, Antonio ;

Davis, Richard ;

de Avillez, Miguel ;

de Bernardis, Paolo ;

de Petris, Marco ;

de Rosa, Adriano ;

de Zotti, Gianfranco ;

Delabrouille, Jacques ;

Desert, Francois-Xavier ;

Dickinson, Clive ;

Diego, Jose Maria ;

Dunkley, Joanna ;

Ensslin, Torsten ;

Errard, Josquin ;

Falgarone, Edith ;

Ferreira, Pedro ;

Ferriere, Katia .

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2014, (02)

[4] Primordial bispectrum information from CMB polarization [J].

Babich, D ;

Zaldarriaga, M .

PHYSICAL REVIEW D, 2004, 70 (08)

[5] Gravity waves and non-Gaussian features from particle production in a sector gravitationally coupled to the inflaton [J].

Barnaby, Neil ;

Moxon, Jordan ;

Namba, Ryo ;

Peloso, Marco ;

Shiu, Gary ;

Zhou, Peng .

PHYSICAL REVIEW D, 2012, 86 (10)

[6] NINE-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE (WMAP) OBSERVATIONS: FINAL MAPS AND RESULTS [J].

Bennett, C. L. ;

Larson, D. ;

Weiland, J. L. ;

Jarosik, N. ;

Hinshaw, G. ;

Odegard, N. ;

Smith, K. M. ;

Hill, R. S. ;

Gold, B. ;

Halpern, M. ;

Komatsu, E. ;

Nolta, M. R. ;

Page, L. ;

Spergel, D. N. ;

Wollack, E. ;

Dunkley, J. ;

Kogut, A. ;

Limon, M. ;

Meyer, S. S. ;

Tucker, G. S. ;

Wright, E. L. .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2013, 208 (02)

[7] Cosmic microwave background and helical magnetic fields: The tensor mode [J].

Caprini, C ;

Durrer, R ;

Kahniashvili, T .

PHYSICAL REVIEW D, 2004, 69 (06) :20

[8] An inflationary model with small scalar and large tensor nongaussianities [J].

Cook, Jessica L. ;

Sorbo, Lorenzo .

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2013, (11)

[9] Limits on non-gaussianities from WMAP data [J].

Creminelli, Paolo ;

Nicolis, Alberto ;

Senatore, Leonardo ;

Tegmark, Max ;

Zaldarriaga, Matias .

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2006, (05)

[10] Efficient optimal non-Gaussian CMB estimators with polarization [J].

Fergusson, J. R. .

PHYSICAL REVIEW D, 2014, 90 (04)

← 1 2 3 4 →