How Will Sun Die? Scientists Reveal The Hidden Mystery

How Will Sun Die? Scientists Reveal The Hidden Mystery

"We found that stars with mass less than 1.1 times the mass of the sun produce fainter nebula, and stars more massive than 3 solar masses brighter nebulae, but for the rest, the predicted brightness is very close to what had been observed".

According to a new study published Monday in the journal Nature Astronomy, researchers may have a new understanding of exactly what will become of the sun after it reaches the end of its life. If we are curious about how our star will find its end, the researchers have chose to run a few models and simulations and see what they get.

As a star meets its end, it ejects up to half its mass into space creating an envelope of gas and debris and exposing the star's core.

An worldwide group of astronomers has claimed to have figured out as to when the sun would die and what would eventually happen to it.

Although it was previously believed that our sun's mass is too low to generate a white dwarf and, subsequently, a visible planetary nebula, the model predicts that this is not the case anymore. Several previous studies have found that, in order for a bright planetary nebula to form, the initial star needs to have been up to twice as massive as the Sun.

In fact, this new model shows that "the sun is nearly exactly the lowest mass star that still produces a visible, though faint, planetary nebula", notes a news release from the University of Manchester in the United Kingdom, which led the project.

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It is expected that the low mass stars similar to the sun will give rise to the planetary nebulae, which will dazzle out to be visible before it withers away. The Professor continued to say that the envelope could measure near about half of the mass of the original star.

Older scientific models said our star didn't have enough mass to produce a visible nebula, but observational data suggested otherwise. Further, he said that this unveils the core of the star, which at this scenario in the life of the star is gradually getting exhausted before dying off finally.

Zijlstra also said that envelope can shine for 10,000 years and be seen from distances measuring tens of millions of years.

They're named planetary nebulae not because they actually have anything to do with planets, but because, when the first ones were discovered by William Herschel in the late 18th century, they were similar in appearance to planets through the telescopes of the time. The team used this model to see the brightness of the ejected envelope of stars that have different masses and ages.

"Problem solved, after 25 years!", Ziljstra concluded. Astrophysicists had never managed to conclusively prove that our sun would fall into the 90 percent until now, partly because old models weren't accurate - even though scientists could find examples of low-mass stars becoming bright nebulae, the models suggested a star had to have a large mass.

Professior Zijlstra said that after 10,000 years of the star dying, the planetary nebula becomes bright.