What is recorded here?
The Planck Collaboration reconstructed a noisy sky map of the cosmic microwave background lensing potential from the first 15 months of temperature data and estimated its power spectrum. Combining the relevant angular scales, the authors reported a lensing signal above 25σ and an approximately 4% constraint on the fiducial spectrum amplitude; cross-correlations with other tracers were also measured.
Source-linked catalogue note. A detailed explanatory guide has not yet been prepared for this entry.
Scientific scope
The 4% figure refers to a specified amplitude relative to a fiducial spectrum and is not a model-free four-percent measurement of every cosmological parameter. Each lensing-map mode is noise dominated. The main likelihood uses multipoles 40–400; low-multipole consistency failures and a higher-multipole channel discrepancy were reported outside that range.
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Credit belongs to the cited collaborations. The individual author list is incomplete; no sole discoverer or individual effort share is inferred. The recorded author list is incomplete.
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English catalogue narrative
Planck reconstructs the CMB lensing potential and its power spectrum
The Planck Collaboration reconstructed a noisy sky map of the cosmic microwave background lensing potential from the first 15 months of temperature data and estimated its power spectrum. Combining the relevant angular scales, the authors reported a lensing signal above 25σ and an approximately 4% constraint on the fiducial spectrum amplitude; cross-correlations with other tracers were also measured.
Scientific scope
The 4% figure refers to a specified amplitude relative to a fiducial spectrum and is not a model-free four-percent measurement of every cosmological parameter. Each lensing-map mode is noise dominated. The main likelihood uses multipoles 40–400; low-multipole consistency failures and a higher-multipole channel discrepancy were reported outside that range.
Reading status
This is a source-linked WRS catalogue note. A full explanatory guide and independent scientific reconstruction have not been completed for this entry. Read the identified original work for its complete narrative and arguments.
People and systems
Credit belongs to the cited collaborations. The individual author list is incomplete; no sole discoverer or individual effort share is inferred.