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Proceedings of the International Astronomical Union Proceedings of the International Astronomical Union

Article contents

A Close Examination of CMB Mirror-Parity

Published online by Cambridge University Press:  01 July 2015

Assaf Ben-David  and
Ely D. Kovetz
Assaf Ben-David
Affiliation:
Niels Bohr International Academy and Discovery Center, The Niels Bohr Institute, Blegdamsvej 17, DK-2100 Copenhagen Ø, Denmark; email: bendavid@nbi.dk
Ely D. Kovetz
Affiliation:
Theory Group, Department of Physics and Texas Cosmology Center, The University of Texas at Austin, TX 78712, USA; email: elykovetz@gmail.com
Corresponding
E-mail address:
bendavid@nbi.dk
elykovetz@gmail.com
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Abstract

We revisit recent claims of significant mirror-parity in CMB data from WMAP and Planck with a careful analysis using statistical estimators in both harmonic and pixel spaces. While the data indeed show significant signs of odd mirror-parity under some circumstances, the broad study shows that the results are not in significant tension with ΛCDM.

Keywords

cosmic microwave background methods: data analysis methods: statistical
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 10 , Symposium S306: Statistical Challenges in 21st Century Cosmology , May 2014 , pp. 150 - 152
Copyright
Copyright © International Astronomical Union 2015 

References

Ade, P. A. R., et al. (The Planck Collaboration) 2013a, preprint (arXiv:1303.5072)Google Scholar
Ade, P. A. R., et al. (The Planck Collaboration) 2013b, preprint (arXiv:1303.5083)Google Scholar
Ben-David, A., Kovetz, E. D. & Itzhaki, N. 2012, ApJ, 748, 39CrossRefGoogle Scholar
Ben-David, A. & Kovetz, E. D. 2014, preprint (arXiv:1403.2104)Google Scholar
Bobin, J., Sureau, F., Starck, J.-L., Rassat, A., & Paykari, P. 2014, A&A, 563, A105Google Scholar
de Oliveira-Costa, A., Tegmark, M., Zaldarriaga, M., & Hamilton, A. 2004, Phys. Rev. D, 69, 063516CrossRefGoogle Scholar
Finelli, F., Gruppuso, A., Paci, F., & Starobinsky, A. A. 2012, J. Cosmol. Astropart. Phys., 7, 49CrossRefGoogle Scholar

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