Assessing the effects of foregrounds and sky removal in WMAP

@article{Slosar2004AssessingTE,
  title={Assessing the effects of foregrounds and sky removal in WMAP},
  author={An{\vz}e Slosar and Uros Seljak},
  journal={Physical Review D},
  year={2004},
  volume={70},
  pages={083002}
}
Many recent analyses have indicated that large scale Wilkinson Microwave Anisotropy Probe (WMAP) data display anomalies that appear inconsistent with the standard cosmological paradigm. However, the effects of foreground contamination, which require elimination of some fraction of the data, have not been fully investigated due to the complexity in the analysis. Here we develop a general formalism of how to incorporate these effects into any analysis of this type. Our approach is to compute the… 

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References

SHOWING 1-8 OF 8 REFERENCES

Information Theory

Information TheoryPapers read at a Symposium on Information Theory held at the Royal Institution, London, August 29th to September 2nd, 1960. Edited by Colin Cherry. Pp. xi + 476. (London:

and P

    Information Theory, Inference, and Learning Algorithms

    • D. Mackay
    • Computer Science
      IEEE Transactions on Information Theory
    • 2004
    Fun and exciting textbook on the mathematics underpinning the most dynamic areas of modern science and engineering.

    Phys

    • 21, 1087
    • 1953

    MNRAS 348

    • 885
    • 2004

    MNRAS 338

    • 765
    • 2003

    MNRAS 346

    • L26
    • 2003

    ApJS 146

    • 407
    • 2003