Detection of new point sources in WMAP cosmic microwave background maps at high Galactic latitude - A new technique to extract point sources from CMB maps

  title={Detection of new point sources in WMAP cosmic microwave background maps at high Galactic latitude - A new technique to extract point sources from CMB maps},
  author={Elsa P. R. G. Ramos and Roberto Vio and P Andreani},
  journal={Astronomy and Astrophysics},
In experimental microwave maps, point sources can strongly affect the estimate of the power spectrum and/or the test of Gaussianity of the cosmic microwave background (CMB) component. As a consequence, their removal from the sky maps represents a critical step in the analysis of the CMB data. Before removing a source, however, it is necessary to detect it, and source extraction is a delicate preliminary operation. In the literature, various techniques have been presented to detect point sources… 

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