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Variations in the mean line of sight velocity of the Sun: 1976–1985

  • A. Jiménez (a1), P.L. Pallé (a1), C. Régulo (a1), T. Roca Cortés (a1), Y.P. Elsworth (a2), G.R. Isaak (a2), S.M. Jefferies (a2), C.P. McLeod (a2), R. New (a2) and H.B. van der Raay (a2)...

Abstract

Measurements of the line of sight velocity of the sun with respect to earth have been obtained at Izaña (Tenerife) during the years 1976 to 1985. The mean values found for each year show a trend of ~30 m/s from minimum to maximum. Their mean value is of 583.1 ± .2 m/s which is 92% of the gravitational red shift predicted by theory and their variation seems to be related to the solar cycle with the clear exception of 1985. The most likely interpretation is that the velocity limb shift effect, averaged over the whole sun, is the cause of the slight disagreement with theory and this effect changes with time.

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References

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Beckers, J.M., Nelson, G.D.: 1978. Sol. Phys., 58, 243
Brookes, J.R., Issak, G.R., van der Raay, H.B.: 1978. MNRAS, 185, 1
Claverie, A., Isaak, G.R., Mc Leod, C.P., van der Raay, H.B., Pallé, P.L., Roca Cortés, T.: 1982. Nature, 299, 709

Variations in the mean line of sight velocity of the Sun: 1976–1985

  • A. Jiménez (a1), P.L. Pallé (a1), C. Régulo (a1), T. Roca Cortés (a1), Y.P. Elsworth (a2), G.R. Isaak (a2), S.M. Jefferies (a2), C.P. McLeod (a2), R. New (a2) and H.B. van der Raay (a2)...

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