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Scientists have long been puzzled over the 11-year cycle of the Sun, which is going through periods of intense and lesser activity. These periods of about 11 years are called minimum and maximum solar. During maximum sunlight, the sun gives off more heat and is covered with sunspots. Less heat in a solar minimum is due to a decrease in magnetic waves sent into space and less sunspots.
Why is the sun doing this remains a mystery – at least until now.
Experts at the independent German research institute Helmholtz-Zentrum Dresden-Rossendorf (HZDR) believe they have found solid evidence that planets in the solar system play their role in the cycles of the Sun, especially Venus, Earth and Jupiter.
The researchers analyzed more than a thousand years of solar activity to find the link.
The gravitational pull of Venus, the Earth and the imposing Jupiter exert an effect on the liquid plasma – called Tayler's instability – on the surface of the Sun and modify it when these planets align and combine. essentially gravitational forces every 11.07 years.
The lead author, Frank Stefani, said about the research published in the Solar Physics journal: "The concordance is surprisingly high.
"What we see is a complete parallelism with the planets on 90 cycles. Everything indicates a synchronized process.
"When I got to know the ideas linking the solar dynamo to the planets, I was very skeptical.
"But when we discovered Tayler's instability caused by the current and subjected to helical oscillations in our computer simulations, I wondered: what would happen if the plasma was affected by a small disturbance resembling a tide? The result was phenomenal.
"The oscillation was really excited and became synchronized with the timing of the external disturbance."
The sun can affect the climate of the Earth. A prolonged solar minimum has already led to a "mini-age of ice".
The Maunder Minimum, which has experienced seven decades of icy weather, began in 1645 and continued until 1715, and occurred when sunspots were extremely rare.
During this period, temperatures fell overall by 1.3 degrees Celsius, resulting in shorter seasons and ultimately food shortages.
NASA explains on its website: "All times on Earth, from the surface of the planet to space, begin with the Sun.
"Spatial and meteorological terrestrial weather (the weather we feel on the surface) is influenced by the small changes the sun undergoes during its solar cycle."
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