Is there a common origin for the WMAP low multipole and for the ellipticity in BOOMERanG CMB maps?

V. G. Gurzadyan; P. A. R. Ade; P. de Bernardis; C. L. Bianco; J. J. Bock; A. Boscaleri; B. P. Crill; G. De Troia; E. Hivon; V. V. Hristov; A. L. Kashin; A. E. Lange; S. Masi; P. D. Mauskopf; T. Montroy; P. Natoli; C. B. Netterfield; E. Pascale; F. Piacentini; G. Polenta; J. Ruhl; G. Yegorian

doi:10.1142/s0217732305016658

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arXiv · astro-ph/0312305

Is there a common origin for the WMAP low multipole and for the ellipticity in BOOMERanG CMB maps?

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Abstract

We have measured the ellipticity of several degree scale anisotropies in the BOOMERanG maps of the Cosmic Microwave Background (CMB) at 150 GHz. The average ellipticity is around 2.6-2.7. The biases of the estimator of the ellipticity and for the noise are small in this case. Large spot elongation had been detected also for COBE-DMR maps. If this effect is due to geodesic mixing, it would indicate a non precisely zero curvature of the Universe which is among the discussed reasons of the WMAP low multipole anomaly. Both effects are related to the diameter of the Universe: the geodesics mixing through hyperbolic geometry, low multipoles through boundary conditions.This common reason can also be related with the origin of the the cosmological constant: the modes of vacuum fluctuations conditioned by the boundary conditions lead to a value of the cosmological constant being in remarkable agreement with the supernovae observations.

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V. G. Gurzadyan, P. A. R. Ade, P. de Bernardis, C. L. Bianco, J. J. Bock, A. Boscaleri, B. P. Crill, G. De Troia, E. Hivon, V. V. Hristov, A. L. Kashin, A. E. Lange, S. Masi, P. D. Mauskopf, T. Montroy, P. Natoli, C. B. Netterfield, E. Pascale, F. Piacentini, G. Polenta, J. Ruhl, G. Yegorian. 2003-12-16. Is there a common origin for the WMAP low multipole and for the ellipticity in BOOMERanG CMB maps?. https://doi.org/10.1142/s0217732305016658

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