Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21530404h&link_type=abstract
American Astronomical Society, AAS Meeting #215, #304.04; Bulletin of the American Astronomical Society, Vol. 42, p.301
Astronomy and Astrophysics
Astrophysics
Scientific paper
In January 1924 Arthur Eddington wrote to Walter S. Adams at the Mt Wilson Observatory suggesting a measurement of the "Einstein shift” in Sirius B and providing an estimate of its magnitude. Adams’ 1925 published results agreed remarkably well with Eddington's estimate. Initially this achievement was hailed as the third empirical test of General Relativity (after Mercury's anomalous perihelion advance and the 1919 measurement of the deflection of starlight). It has been known for some time that both Eddington's estimate and Adams’ measurement underestimated the true Sirius B gravitational redshift by a factor of four. This talk will focus on four unresolved issues concerning this famous episode in the history of astrophysics.
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