What is recorded here?
Smith, Zahn and Doré reconstructed a noisy gravitational-lensing potential from WMAP temperature maps and cross-correlated it with radio-source counts from the NVSS survey. They reported a 3.4σ lensing signal including their modeled systematic errors, an early observational detection of CMB lensing.
Source-linked catalogue note. A detailed explanatory guide has not yet been prepared for this entry.
Scientific scope
The detection is a statistical cross-correlation using an external tracer, not a high-significance internal CMB-only lensing map. The quoted significance depends on the analysis and systematic-error model; the curl null test does not test every parity-symmetric contaminant. The authors did not infer a fully calibrated cosmological parameter constraint because source redshift distribution and galaxy bias were uncertain.
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People and systems
Kendrick M. Smith; Oliver Zahn; Olivier Doré
These are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged.
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English catalogue narrative
CMB gravitational lensing detected through WMAP and radio-galaxy cross-correlation
Smith, Zahn and Doré reconstructed a noisy gravitational-lensing potential from WMAP temperature maps and cross-correlated it with radio-source counts from the NVSS survey. They reported a 3.4σ lensing signal including their modeled systematic errors, an early observational detection of CMB lensing.
Scientific scope
The detection is a statistical cross-correlation using an external tracer, not a high-significance internal CMB-only lensing map. The quoted significance depends on the analysis and systematic-error model; the curl null test does not test every parity-symmetric contaminant. The authors did not infer a fully calibrated cosmological parameter constraint because source redshift distribution and galaxy bias were uncertain.
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
Kendrick M. Smith; Oliver Zahn; Olivier Doré
These are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged.