The secret revolves around the extremely hot sun halo

A combination of technology and careful observation probably explained the secret 100 years ago about how the sun works. The secret is that sun halo is often thought to be hot by millions of degrees - the outer layer of the sun is seen around the moon during the total solar eclipse.

Can see the sun halo when there is a solar eclipse (Photo: NASA)

For decades, scientists have known that the sun's halo is many times hotter than the chromium beneath it, but this is not explained yet because deep inside the sun is where all the antiparticles are. Extremely hot nuclear reactions take place.

Dr Bart De Pontieu, a research scientist at Lockheed Martin's Solar and Astrophysics Laboratory in California, said: 'This is still a mystery since it was discovered in the world. past and it's hard to solve. '

This mysterious, very high heat source of the sun halo has long been suspected of hiding or in plasma in the form of distortion with strong magnetism covering the sun, or in sound waves below the vibrating range that passes through. Our nearest planet.

But researchers think that turned out to be not one or the other. Dr. De Pontieu said: 'It is a combination of magnetism and the sound waves of the sun.'

He and Dr. Scott McIntosh of the Southwest Research Institute announced their findings this week during the meeting of the American Astronomical Society in Honolulu.

Sound creates heat

The two biggest surprises are the sound waves coming into the sun and being able to heat things up.

Dr. McIntosh said: 'They are not normal sound waves. Instead, these waves carry a considerable amount of energy of 200W per square meter and more like seismic waves. This seismic energy escapes and enters the sun's halo when the sun's magnetic field leans at an appropriate level for them to escape . "

It is this energy leakage that can be seen by using optical filters at two altitudes ( MOTH for short) in Antarctica. The device has two forward telescopes and two optical filters, one filled with sodium and the other full of potassium gas. The device focuses on the sun's atmosphere at two different heights - about 120 miles (200 km) on the surface for potassium-containing filtration equipment and 300 to 420 miles (500 to 700 km) for filtration equipment. Sodium - intended to measure the wave type and its travel time.

The CME SOHO image was blown out of the sun (left) and the spectral range (right).
(Photo: ESA / NASA)

Dr. McIntosh said: 'There are many sound waves leaked due to the continuous jostling of the solar magnetic field. They allow us to take advantage of the energy reserves inside the sun. '

Reach the surface

These sound waves were once thought to be incapable of reaching the surface to add energy and thereby adding heat to the sun's halo. But by coordinating observations with the SOHO and TRACE spacecraft and the solar observers in Antarctica and the Canary Islands, the team was able to create a clear case about it.

They also produced simulations to confirm that physics is understandable. Dr. Andrea DuPree, a solar researcher at the Harvard-Smithsonian Center for Astrophysics Research, says that solving this persistent mystery will have applications far beyond the sun. He said: 'The lessons we know about the sun, we will apply to other planet. I think it's a very interesting study. '

The image shows a CME spraying energy from the sun particles towards the earth (Source: ESA / NASA)

Thien Kim