Publication Abstracts

Shirley et al. 1990

Shirley, J.H., K.R. Sperber, and R.W. Fairbridge, 1990: Sun's inertial motion and luminosity. Solar Phys., 127, 379-392, doi:10.1007/BF00152175.

Fast Fourier analysis of the detrended record of solar irradiance obtained by the Nimbus-7 cavity pyrheliometer shows a rich spectrum of significant frequencies between about 30 and 850 nHz (periods between 13 and 400 days). Wolff and Hickey (1987), elaborating on a model developed by Wolff (1974, 1976, 1983, and 1984), suggest that many of these peaks arise due to interference of rigidly rotating global solar oscillations (r- and g-modes). Their model fit is quite good in the region above about 135 nHz, but less satisfactory below this threshold. It is noted that the FFT spectrum of d2L/d2t, the second derivative of angular momentum of the solar inertial motion, contains peaks matching the large peaks in the irradiance spectrum below 400 nHz with periods near 0.08, 0.24, 0.65, and about 1 yr. The origins of the peaks in the d2L/d2t spectra are discussed, and some previous studies are reviewed bearing on the question of a possible relationship of solar motion and solar activity.

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BibTeX Citation

  author={Shirley, J. H. and Sperber, K. R. and Fairbridge, R. W.},
  title={Sun's inertial motion and luminosity},
  journal={Solar Phys.},

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RIS Citation

ID  - sh08100v
AU  - Shirley, J. H.
AU  - Sperber, K. R.
AU  - Fairbridge, R. W.
PY  - 1990
TI  - Sun's inertial motion and luminosity
JA  - Solar Phys.
VL  - 127
SP  - 379
EP  - 392
DO  - 10.1007/BF00152175
ER  -

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