Experts on solar physics have been searching for answers to the sun's unusual activities, especially its overlapping fluctuations. Today, researchers from the German laboratory Helmholtz-Zentrum Dresden-Rossendorf or HZDR and Russia's Institute of Continous Media Mechanics ICMM have identified comprehensive answers to the puzzling sun cycles.


Sun Cycles, Magnetic Field, and the Solar Dynamo

The sun's long cycles can be traced back to hundreds of thousands of years. One of the famous cycles that the sun presently undergoes is the Schwabe cycle, which takes a long, periodic solar activity that takes place every 11 years. Among the solar cycles are the 85-year Gleissberg cycle, the 200-year Suess-de Vries cycle, and the 1,500-year Bond events.

The experts are hoping to find the answers and correct models regarding the changes of the magnetic field which the solar cycles cause. The findings on the developing study are expected to give a clue to whether the sun is controlled by external factors and the effects of the solar dynamo process in the magnetic field of the sun itself, reports Science Daily.

HZDR researcher and principal author of the study Frank Stefani, together with his colleagues, finally had some of the key explanations of the solar activities and the planetary hypothesis after years of research. The study, which was published in the journal Springer entitled "Shaken and Stirred: When Bond Meets Suess-de Vries and Gnevyshev-Ohl," shows the possibility of the planets playing a huge role in the sun's cycles.

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Sun's Clock Proves Planetary Hypothesis, Chaos in Cycle

Solar physics experts have recently acquired significant data on the sun's orbital cycle. According to the study, the sun does not rest permanently in its position at the center of the system. It somehow forms a dance that, from time to time, tugging the gravitational force between itself and the giant planets Saturn and Jupiter. The dance-like pull of the sun proceeds at the rate of 19.86 years. Earth also experiences effects from the orbital cycle. The rotation of the planet triggers small motions to its own liquid core.

Solar physicists determine that the sun's angular momentum in its orbit could be transferred to its rotation. This process affects the internal dynamo that causes what we call a solar magnetic field. This entire procedure is enough to drastically change the super-sensitive magnetic depository of the transition regions between different energy exports inside the sun, also known as tachocline. Stefani mentioned that the effects of the coiling of the magnetic fields could easily manifest throughout the sun's surface, reports Phys.org.

The changes caused by the tachocline affected other cynical solar phenomena, which were also observed in the study. In addition to the Schwabe cycle, the Suess-de Vries cycle was also the result of the combination of the planet's tidal forces combined with the sun's movements. These external factors form a system that is also called the sun's clock.

The sun's clock also uses the tidal force of the planets Earth, Jupiter, and Venus as its own metronome. Stefani stated that the solar dynamo is greatest when these planets are aligned.

The researchers created a simulation to prove the solar dynamo in a span of 30,000 years. Short and long cycles have been exhibited by the sun, and along with it, several drops of the magnetic field have occurred in the interval of 1,000 to 2,000 years. Stefani said that the simulation showed the formation of the sun's north and south asymmetry. Over time, it became too strong and eventually went out of sync until everything collapses. Fortunately, it will be back in sync after the chaotic process, he added.

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