Solar gravitational redshift from the infrared oxygen triplet

Details Solar gravitational redshift from the infrared oxygen triplet Solar gravitational redshift from the infrared oxygen triplet

Aug 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...376..757l&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 376, Aug. 1, 1991, p. 757-760.

Astronomy and Astrophysics

Astrophysics

15

Gravitational Effects, Red Shift, Relativity, Solar Spectra, Chromosphere, Infrared Spectra, Oxygen Spectra, Solar Gravitation

Scientific paper

The difference in wavelength between the IR oxygen triplet 7772-7775 A in the sun and in the laboratory has been observed. Converted to velocities, the disk values, extrapolated to the limb, give a redshift of 655 m/s compared to the value of 636 m/s predicted from the principal of equivalence. Observations of the chromospheric oxygen lines in emission just off the sun's limb give a velocity of 627 m/s or 0.99 of the Einstein prediction.

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