期刊
PHYSICAL REVIEW D
卷 84, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.84.063001
关键词
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资金
- Fundacao para a Ciencia e a Tecnologia (FCT) [SFRH/BPD/65993/2009, SFRH/BPD/65122/2009]
- European Programme [FP7-PEOPLE-2010-RG-268312]
- Fundação para a Ciência e a Tecnologia [SFRH/BPD/65993/2009] Funding Source: FCT
An incomplete sky coverage poses difficulties in the extraction of the weak lensing information from the CMB. We test the reconstruction of the weak lensing convergence from CMB maps to which masks of point sources have been applied. We use the quadratic estimator with a kernel with finite support acting in real space for a PLANCK simulation. We recover the lensing signal without significant loss of power or addition of spurious correlations, thus showing that masking defected pixels does not affect the reconstruction of the weak lensing convergence in real space.
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