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According to a New Study, The Sun Has More Oxygen and Metals In Its Chemical Composition

The Sun is shrouded in enigma. People on Earth are approximately 150 million kilometres from the Sun and have only a restricted glimpse of the star.

Add in the fact that the Sun’s surface is extremely hot, and particles are constantly ejected at a rate of roughly 1 million miles per hour.
It’s no surprise, then, that scientists and astronomers continue to learn new things about the Sun.

The new findings put an end to a ten-year controversy about the Sun’s makeup.


• Astronomers and researchers are continually learning new things about the Sun.
• The Sun and other similar stars are largely composed of hydrogen and helium.
• The Sun has 26 percent more heavy elements than helium.

Astronomers have now resolved a ten-year debate between the internal structure of the Sun as determined by solar oscillations (helioseismology) and the structure derived from the fundamental theory of star evolution, which is based on measurements of the present-day Sun’s chemical composition.

For example, the Sun contains substantially more oxygen, silicon, and neon than previously thought.

Furthermore, the technologies employed provide significantly more precise predictions of star chemical compositions in general.

When a tried-and-true method for calculating the Sun’s chemical composition collides with a new, precise method for mapping the Sun’s inner structure, what do you do?

Astronomers studying the Sun faced this problem until recent computations resolved the apparent disagreement.

The method used spectral analysis, which breaks light down into waves of different lengths.

In stellar spectra, dark lines can be visible, indicating the presence of specific chemical components.

As early as 1920, these lines were related to the star’s temperature and chemical makeup.

According to astronomers, hydrogen and helium make up the majority of other comparable stars.

This standard model was calibrated using solar atmospheric observations published in 2009.

According to the helioseismic model, the convection zone inside, where matter actively mixes and transmits energy from the inner to the outer layers, is substantially larger than the standard model predicts.

Other figures were also incorrect, such as the total amount of helium.

Ekaterina Magg, Maria Bergemann, and colleagues were able to solve this problem by evaluating the models on which spectral estimates of the Sun’s chemical composition are based.

The Sun Has 26 Percent More Heavy Elements than Helium

The Sun

They made a list of all the chemical elements that are linked to modern stellar evolution ideas.

According to Magg, they determined that has 26% more elements heavier than helium than previous study had suggested.

According to Magg, the oxygen abundance value was roughly 15% higher than in earlier research.

When those new values are used as the input for present models of solar structure and evolution, the unexplained gap between the outcomes of those models and helioseismic evidence vanishes.

The solar abundance conundrum is solved by a thorough analysis of how spectral lines are created.

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