Scientists from the Indian Astrophysical Institute (IIA) in the new study were able to accurately estimate the abundance of helium in the sun. This finding could be the main step in assessing the opacity of solar photography.
According to the Ministry of Science and Technology, astronomers traditionally assumed the abundance of helium in the photosphere of stars similar to solar means as a tenth of hydrogen extrapolations from warmer stars or from the outer atmosphere of the Sun (Sun Corona, Solar Wind), or seismological studies of the sun interior. “None of these methods is based on direct observations of the photosphere due to the absence of helial spectral lines,” he said,
He added that the accurate and reliable measurement of the abundance of helium element in the sun photosphere remains a challenge for astronomers to this day.
“The amount of different elements in our sun or in any other star is estimated from their absorbent spectral lines. Since helium does not create an observable spectral line from the visible surface or photosphere of the Sun, its abundance was usually estimated by an indirect means,” the department said.
Now scientists IIA have used a new method to estimate the abundance of helium in the sun. By using magnesium and carbon elements in the observed spectrum of the Sun with a high resolution, the abundance of the element accurately calculated.
“The use of new and consistent techniques, while the spectral line of neutral magnesium and carbon atoms in conjunction with lines from the hydrogenated molecules of these two elements is carefully modeled, we are now able to reduce the relative abundance of helium in the solar photosphere,” said Satyajet Moharan. “
The other two authors of the study published in the astrophysical magazine are BP Hema and Gajendra Pandey.
Published – 4 May 2025 17:59 is
