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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
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Abstract

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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 backgroundmethods: data analysismethods: statistical

References

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