CM5 - Present and future of CMB observations |
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Speaker |
Pinkwart, Marvin |
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Coauthors |
Schupp, Peter; Schwarz, Dominik J. |
| Talk Title |
CMB Temperature Analysis with Multipole Vector and Entropy Methods |
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Abstract |
The CMB temperature data shows several large-scale anomalies whose precise physical origin is still unknown. We present recent results obtained with Planck 2015 data using the method of multipole vectors for multipole moments up to l=50. Correlations with the Solar Dipole imply that further investigations of the true nature of the Dipole are needed. Furthermore a slight hint towards a connection between a previously reported parity anomaly and the galactic plane is found. Secondly we introduce entropy methods motivated from statistical quantum mechanics which allow for investigating the CMB data up to $l=1000$ and beyond. Both methods share the property, that the results do not explicitly depend on the power spectrum but rather on the relative behavior of the spherical harmonic coefficients and hence they yield additional information. Moreover both methods allow for distinguishing the quality and behavior of different foreground cleaning algorithms and can yield information about possible residual foreground contamination. |
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