Internal rotation of the Sun

@article{Duvall1984InternalRO,
  title={Internal rotation of the Sun},
  author={T. Duvall and W. Dziembowski and P. Goode and D. Gough and J. Harvey and J. Leibacher},
  journal={Nature},
  year={1984},
  volume={310},
  pages={22-25}
}
The frequency difference between prograde and retrograde sectoral solar oscillations is analysed to determine the rotation rate of the solar interior, assuming no latitudinal dependence. Much of the solar interior rotates slightly less rapidly than the surface, while the innermost part apparently rotates more rapidly. The resulting solar gravitational quadrupole moment is J2 = (1.7±0.4) × 10−7 and provides a negligible contribution to current planetary tests of Einstein's theory of general… Expand
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References

SHOWING 1-10 OF 17 REFERENCES
Internal rotation and gravitational quadrupole moment of the Sun
The internal angular velocity of the Sun is estimated from observations of apparent rotational splitting of low-order low-degree global oscillations detected in fluctuations in the limb-darkeningExpand
Internal rotation of the Sun
The low surface rotation rate of the Sun and other main-sequence stars is believed to be the result of angular momentum loss due to a stellar wind1. This loss also leads to a differential rotation,Expand
Rotational frequency splitting of solar oscillations
Prograde and retrograde sectoral oscillations of the Sun have been observed so as to determine frequency differences produced by rotation. Oscillations in the frequency range 2.1–3.7 mHz and withExpand
Preliminary determination of the sun's gravitational quadrupole moment from rotational splitting of global oscillations and its relevance to tests of general relativity
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. TheExpand
Rapid rotation of the solar interior
The observation of line-of-sight velocities of the solar surface by means of Doppler shift measurements of the Fraunhofer absorption lines, using optical resonance scattering, has proved a usefulExpand
The effects of differential rotation on the splitting of nonradial modes of stellar oscillation
The problem of the splitting of adiabatic nonradial modes of stellar oscillation owing to slow differential rotation is examined. Integral expressions for the frequency splitting are derived for theExpand
Detection of solar gravity mode oscillations
An analysis of solar velocity data obtained at the Stanford Solar Observatory shows the existence of solar global oscillations in the range 45–105 µHz (160–370 min). These oscillations areExpand
Do solar-type stars have magnetic cores. A question of stability
The differentially rotating, stably stratified core expected in new solar-type stars, according to Larson and others, should generate a strong toroidal magnetic field by winding a weak poloidalExpand
Is the Sun an oblique magnetic rotator?
The recent observation1 of rotational splitting of the non-radial p modes of l = 1 and l = 2 (with it n∼20) of the 5-min global oscillation of the Sun was interpreted in terms of rotational splittingExpand
Tests of general relativity using astrometric and radio metric observations of the planets
Abstract Current least squares fits to solar system data, including transit circle observations of the terrestrial and giant planets, radar observations of the terrestrial planets, Mariner 9 rangeExpand
...
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