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Anisotropic power spectrum and the observed low-l power in PLANCK CMB data

Rath, Pranati K.; Zhao, Dong; Chang, Zhe +1 more

In this work, we study a direction dependent power spectrum in anisotropic Finsler space-time. We use this direction dependent power spectrum to address the low-l power observed in WMAP and PLANCK data. The angular power spectrum of the temperature fluctuations has a lower amplitude in comparison to the ΛCDM model in the multipole range l = 2 - 40…