Preliminary Determination of the Sun's Gravitational Quadrupole Moment from Rotational Splitting of Global Oscillations and its Relevance to Tests of General Relativity

Henry A. Hill, Randall J. Bos, Philip R. Goode

Research output: Contribution to journalArticlepeer-review

43 Scopus citations

Abstract

The sun's internal angular velocity is estimated from observations of rotational splitting of low-order, low-degree global oscillations detected as fluctuations in the limb-darkening function. The inferred rapid rotation implies a unitless grativational quadrupole moment, J2, of (5.5±1.3)×10-6. When this result is combined with two published planetary radar results, values of 0.987±0.006 and 0.991±0.006 are obtained for 13(2+2γ-β), a quantity equal to 1 in the general theory of relativity.

Original languageEnglish (US)
Pages (from-to)1794-1797
Number of pages4
JournalPhysical Review Letters
Volume49
Issue number24
DOIs
StatePublished - 1982
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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