What is recorded here?
At Jodrell Bank Hanbury Brown and Twiss tested optical intensity interferometry on Sirius, observing a decrease in correlated intensity with projected baseline. A later participant account reproduces four observational signal-to-noise values and reports a best-fit angular diameter of 7.1 ± 0.55 milliarcseconds after a theoretical limb-darkening correction.
Source-linked catalogue note. A detailed explanatory guide has not yet been prepared for this entry.
Scientific scope
Hanbury Brown and Twiss’s 1956 paper gives the original two-author attribution. The quoted 7.1 ± 0.55 milliarcsecond diameter and four signal-to-noise values come from Hanbury Brown’s later participant account and subsequent analysis; they should not be presented as a direct reanalysis of the original observations. Atmospheric scintillation, optical bandwidth, normalization and limb-darkening assumptions affect the result.
Read the original work
- The Intensity Interferometer: Its Application to Astronomy
- A Test of a New Type of Stellar Interferometer on Sirius
This English explanation is an editorial reading view. It does not replace the complete original work or certify its science.
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People and systems
R. Hanbury Brown; R. Q. Twiss
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.
Research locations and affiliations
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English catalogue narrative
Optical stellar intensity interferometry of Sirius
At Jodrell Bank Hanbury Brown and Twiss tested optical intensity interferometry on Sirius, observing a decrease in correlated intensity with projected baseline. A later participant account reproduces four observational signal-to-noise values and reports a best-fit angular diameter of 7.1 ± 0.55 milliarcseconds after a theoretical limb-darkening correction.
Scientific scope
Hanbury Brown and Twiss’s 1956 paper gives the original two-author attribution. The quoted 7.1 ± 0.55 milliarcsecond diameter and four signal-to-noise values come from Hanbury Brown’s later participant account and subsequent analysis; they should not be presented as a direct reanalysis of the original observations. Atmospheric scintillation, optical bandwidth, normalization and limb-darkening assumptions affect the result.
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
R. Hanbury Brown; R. Q. Twiss
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.