This wave extends 125,000 miles below the surface of the Sun.
REPUBLIKA.CO.ID, ABU DHABI — A team of solar physicists has revealed a large rotating wave that travels across the sun’s surface. This wave extends 125,000 miles below the surface of the Sun.
The research team was led by New York University (NYU) Co-Principal Investigator of the Center for Space Science, Laurent Gizon. Gizon, on behalf of the Max Planck Institute for Solar System Research (MPS) and the University of Göttingen in Germany, made the discovery, along with a team of scientists, after a decade of observations from NASA’s Solar Dynamics Observatory.
Reported in Emirate News Agency, your (30/8), sThis study has led to the discovery of the Sun’s global oscillation, proportional to the rotation period Sun 27 days. The oscillations manifest themselves on the sun’s surface as a circular motion at a speed of about three miles per hour.
In the 1960s scientists discovered the solar oscillation. This 5-minute oscillation has been observed continuously by space telescopes and observatories since the mid-1990s. These oscillations are used by helioseismologists to study the internal structure and dynamics of stars. This is similar to how seismologists can study the interior of the earth by studying earthquakes.
Apart from 5-minute waves, longer period oscillations were thought to have existed in the star more than 40 years ago but had not been identified in the Sun until now.
“Discovery of a new kind solar oscillation “This is very interesting because it allows us to infer properties, such as convective driving forces, that ultimately control the solar dynamo,” Gizon said.
The solar dynamo is thought to be responsible for features and eruptions on the Sun’s surface that vary in intensity over an 11-year cycle of solar activity.
The oscillations will help establish new ways to probe the Sun’s interior and gain information about the structure and dynamics of the Sun’s interior. Scientists have described their findings in the latest issue of the journal Astronomy & Astrophysics.
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