Scientists Detect Bizarre High-Frequency Waves Coming From The Sun's Surface
A group of researchers from New York University Abu Dhabi's (NYUAD) Center for Space Science recently published a paper detailing how they analyzed 25 years of space and ground-based data to detect these waves. The new waves, known as high-frequency retrograde (HFR) waves, move in the opposite direction of the Sun, appear as vortices on the surface of the Sun, and move at three times the speed identified by current theory.
Scientists rely on interpreting the surface signatures of a variety of waves to image the interior of the sun, being they cannot do so with conventional astronomy. Researchers used measurements of resonating sound waves to image the interior structure and flows.
Chris Hanson, lead-author of the research paper, stated, "The set of techniques that use acoustic waves to make determinations of the solar interior is collectively known as helioseismology."
The research was conducted within NYUAD’s Center for Space Science in association with the Tata Institute of Fundamental Research (TIFR) and New York University, using NYUAD and TIFR’s computational resources. By studying the Sun’s interior dynamics, via the use of waves, scientists can gain a better understanding of the Sun's potential impact on the Earth and other planets in our solar system.
“The very existence of HFR modes and their origin is a true mystery and may allude to exciting physics at play,” stated Shravan Hanasoge, a co-author of the paper published on Nature Astronomy. “It has the potential to shed insight on the otherwise unobservable interior of the Sun.”
"The very existence of HFR modes and their origin is a true mystery and may allude to exciting physics at play," said Hanasoge. "It has the potential to shed insight on the otherwise unobservable interior of the sun."