Does a Spin–Orbit Coupling Between the Sun and the Jovian Planets Govern the Solar Cycle?

Wilson, I. R.; Carter, B. D.; Waite, I. A.

doi:10.1071/as06018

Cited by 67 publications

(33 citation statements)

References 15 publications

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“…Meridional circulation is primarily determined by the Coriolis forces from differential rotation, turbulent Reynolds stresses, and pressure and buoyancy forces (Rüdiger, 1989). An approximate linear relationship exists between the solar cycle variations in differential rotation and the meridional velocity of sunspot groups (Javaraiah and Ulrich, 2006) (Zaqarashvili, 1997;Juckett, 2003;Wilson, Carter, and Waite, 2008). On the other hand, the Coriolis force due to solar rotation affects the rising magnetic flux through the convection zone to the photosphere due to magnetic buoyancy (Choudhuri and Gilman, 1987).…”

Section: Data Analysis and Resultsmentioning

confidence: 99%

Will Solar Cycles 25 and 26 Be Weaker than Cycle 24?

Javaraiah¹

2017

Sol Phys

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The study of variations in solar activity is important for understanding the underlying mechanism of solar activity and for predicting the level of activity in view of the activity impact on space weather and global climate. Here we have used the amplitudes (the peak values of the 13-month smoothed international sunspot number) of Solar Cycles 1 -24 to predict the relative amplitudes of the solar cycles during the rising phase of the upcoming Gleissberg cycle. We fitted a cosine function to the amplitudes and times of the solar cycles after subtracting a linear fit of the amplitudes. The best cosine fit shows overall properties (periods, maxima, minima, etc.) of Gleissberg cycles, but with large uncertainties. We obtain a pattern of the rising phase of the upcoming Gleissberg cycle, but there is considerable ambiguity. Using the epochs of violations of the Gnevyshev-Ohl rule (G-O rule) and the 'tentative inverse G-O rule' of solar cycles during the period 1610 -2015, and also using the epochs where the orbital angular momentum of the Sun is steeply decreased during the period 1600 -2099, we infer that Solar Cycle 25 will be weaker than Cycle 24. Cycles 25 and 26 will have almost same strength, and their epochs are at the minimum between the current and upcoming Gleissberg cycles. In addition, Cycle 27 is expected to be stronger than Cycle 26 and weaker than Cycle 28, and Cycle 29 is expected to be stronger than both Cycles 28 and 30. The maximum of Cycle 29 is expected to represent the next Gleissberg maximum. Our analysis also suggests a much lower value (30 -40) for the maximum amplitude of the upcoming Cycle 25.

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Section: Data Analysis and Resultsmentioning

confidence: 99%

Will Solar Cycles 25 and 26 Be Weaker than Cycle 24?

Javaraiah¹

2017

Sol Phys

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“…Near the equator the period is near 24.47 days. This period is known to vary on a period relating to the orbits of Jupiter, Earth and Venus (Wilson et al, 2008). Near the poles, the period of rotation is around 35 days.…”

Section: Differential Solar Rotation Rates Relating To Planetary Motionmentioning

confidence: 99%

Apparent relations between planetary spin, orbit, and solar differential rotation

Tattersall

2013

Pattern Recogn. Phys.

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Abstract.A correlation is found between changes in Earth's length of day [LOD] and the spatio-temporal disposition of the planetary masses in the solar system, characterised by the z axis displacement of the centre of mass of the solar system [CMSS] with respect to the solar equatorial plane smoothed over a bi-decadal period. To test whether this apparent relation is coincidental, other planetary axial rotation rates and orbital periods are compared, and spin-orbit relations are found. Earth's axial angular momentum moment of inertia, and internal dynamics are considered in relation to the temporal displacement between the potential stimulus and the terrestrial response. The differential rotation rate of the Sun is considered in relation to the rotational and orbital periods of the Earth-Moon system and Venus and Mercury, and harmonic ratios are found. These suggest a physical coupling between the bodies of an as yet undetermined nature. Additional evidence for a resonant coupling is found in the relation of total solar irradiance (TSI) and galactic cosmic ray (GCR) measurements to the resonant harmonic periods discovered.

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“…The Schwabe solar cycle averaging around 11.07 yr and the solar magnetic Hale cycle of around 22.3 yr have been extensively studied and the planetary relations investigated by several researchers, including Wilson et al (2008) and Scafetta (2012b). The Jupiter-Earth-Venus conjunction cycle contains several periodicities including the Schwabe and Hale cycles, and the 44.7 yr inner solar system cycle.…”

Section: The Schwabe and Hale Cyclesmentioning

confidence: 99%

The Hum: log-normal distribution and planetary–solar resonance

Tattersall

2013

Pattern Recogn. Phys.

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Abstract.Observations of solar and planetary orbits, rotations, and diameters show that these attributes are related by simple ratios. The forces of gravity and magnetism and the principles of energy conservation, entropy, power laws, and the log-normal distribution which are evident are discussed in relation to planetary distribution with respect to time in the solar system. This discussion is informed by consideration of the periodicities of interactions, as well as the regularity and periodicity of fluctuations in proxy records which indicate solar variation. It is demonstrated that a simple model based on planetary interaction frequencies can well replicate the timing and general shape of solar variation over the period of the sunspot record. Finally, an explanation is offered for the high degree of stable organisation and correlation with cyclic solar variability observed in the solar system. The interaction of the forces of gravity and magnetism along with the thermodynamic principles acting on planets may be analogous to those generating the internal dynamics of the Sun. This possibility could help account for the existence of strong correlations between orbital dynamics and solar variation for which a sufficiently powerful physical mechanism has yet to be fully demonstrated.

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Does a Spin–Orbit Coupling Between the Sun and the Jovian Planets Govern the Solar Cycle?

Cited by 67 publications

References 15 publications

Will Solar Cycles 25 and 26 Be Weaker than Cycle 24?

Will Solar Cycles 25 and 26 Be Weaker than Cycle 24?

Apparent relations between planetary spin, orbit, and solar differential rotation

The Hum: log-normal distribution and planetary–solar resonance

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