Rare stars with exceptionally abundant oxygen, carbon discovered! Experts don’t know how they formed

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Two rare new departures have been discovered by astronomers. These new space bodies have unusual features that confuse space researchers, particularly how they form.

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TOPSHOT – This long exposure photo taken early on July 23, 2020 shows the Milky Way galaxy rising in the sky above a Syrian fighter from the Turkish-backed National Liberation Front group on guard duty in an outpost in the town of Taftanaz along the front lines in the rebel-held northwest province of Idlib. (Photo by Omar HAJ KADOUR / AFP)

They were first identified by a team of German researchers. After discovering the new type of star, they published the results on the Monthly notices from the Journal of the Royal Astronomical Society.

These two new stars show that people still have a lot to learn about space and its celestial bodies. The discovery of so-called pre-white dwarf stars may further help space experts learn more about the formation of these bright objects.

Rare stars with abundant oxygen and carbon

According to Live ScienceIn his latest report, pre-white dwarfs were identified using data from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) in China.

Rare stars with exceptionally abundant oxygen, carbon discovered!  Experts don't know how they formed

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IN SPACE – DATE UNSPECIFIED: In this handout provided by NASA, an X-ray image from the orbiting Chandra Observatory shows the core of NGC 1260, the galaxy containing SN 2006gy, a massive star in what scientists call the brightest supernova on record. Supernovas typically occur when massive stars run out of fuel and collapse under their own gravity.

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On the other hand, German astronomers also used the Large Binocular Telescope Observatory in Arizona. What makes them quite different from common pre-white dwarf stars is that they have a lot of oxygen and carbon near their surface.

Experts said the massive amount of oxygen and carbon is common to white dwarfs. However, they only appear on their surface if that celestial body is about to die, especially after it has used up most of its helium.

Why these pre-white dwarfs are unusual

The Royal Astronomical Society explained that if a star is far from dying, its surface must be covered with helium and hydrogen.

Once composed of carbon and oxygen, this means that the star is already burning its helium. But, the two rare stars already have the ashes of burning helium even though their cores still have helium.

“Normally, we would expect stars with these surface compositions to have already finished burning helium in their cores and be on the verge of becoming white dwarfs,” the study’s lead author explained. , Klaus Werner.

He added that the newly discovered celestial bodies, named PG1654+322 and PG1528+025, really challenge their understanding of stellar evolution.

NASA’s James Webb Space Telescope captured a “first light” image in other news. Meanwhile, a powerful solar flare was recently identified by NOAA.

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Written by: Griffin Davis

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