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Testing for foreground residuals in the Planck foreground cleaned maps: A new method for designing confidence masks
M. Axelsson, H. T. Ihle, S. Scodeller +1
We test for foreground residuals in the foreground cleaned Planck Cosmic Microwave Background (CMB) maps outside and inside U73 mask commonly used for cosmological analysis. The ai…
Directional dependence of LCDM cosmological parameters
M. Axelsson, Y. Fantaye, F. K. Hansen +3
We study hemispherical power asymmetry (Eriksen et. al. 2004, Hansen et. al. 2004, Hansen et. al. 2009) in the WMAP 9-year data. We analyse the combined V- and W-band sky maps, aft…
CMB Anomalies from Imperfect Dark Energy: Confrontation with the Data
Magnus J. Axelsson, Frode K. Hansen, Tomi Koivisto +1
We test anisotropic dark energy models with the 7-year WMAP temperature observations data. In the presence of imperfect sources, due to large-scale gradients or anisotropies in the…
The radio/gamma-ray connection in Active Galactic Nuclei in the era of the Fermi Large Area Telescope
M. Ackermann, M. Ajello, A. Allafort +144
We present a detailed statistical analysis of the correlation between radio and gamma-ray emission of the Active Galactic Nuclei (AGN) detected by Fermi during its first year of op…
Imprints of a hemispherical power asymmetry in the seven-year WMAP data due to non-commutativity of space-time
N. E. Groeneboom, M. Axelsson, D. F. Mota +1
Non-commutative geometry at inflation can give arise to parity violating modulations of the primordial power spectrum. We develop the statistical tools needed for investigating whe…