How will the sun die? 25-year-old mystery finally solved

How will the sun die? 25-year-old mystery finally solved

How will the sun die? 25-year-old mystery finally solved

The work also revealed that our Sun is just as big as the lowest mass star that could produce a visible planetary nebula.

Astronomers have long known that the sun will die when it runs out of fuel, but the precise nature of its death throes has been far from clear, even to the most morbid of the field's practitioners.

Scientists have often wondered about what the state of the sun will be when it dies, but a new study has finally confirmed what will likely happen many years now.

The scientists developed a new data model that predicts the life cycle of stars. The core of the star will shrink, but its outer layers will expand out to the orbit of Mars, engulfing our planet in the process.

Study co-author Prof. Albert Zijlstra, from the university's School of Physics and Astronomy, explains that, upon their death, stars eject a massive cloud of dust and gas, known as a stellar envelope, which "can be as much as half the star's mass".


But a new study from a group of worldwide researchers, led by Albert Zijlstra from the University of Manchester, gives a pretty good idea of what will happen to the sun when it finally dies. The software takes into account the light measurements from other planetary nebulae, including chemical composition, carbon and oxygen environments, and the dynamics of the stellar winds coming off the dying star - and their consequent illumination by the waning core. The planetary nebula will Shine for about 10 thousand years. The Professor continued to say that the envelope could measure near about half of the mass of the original star. Using a new computer model, scientists have discovered that instead of a simple fade, as previously thought, the Sun is dying will turn into a terrific planetary nebula that will be visible for millions of light years.

'It is only then the hot core makes the ejected envelope shine brightly for around 10,000 years - a brief period in astronomy. "Problem solved, after 25 years!"

The new research suggests that the sun will transform into a planetary nebula - a massive glowing globe of gas and dust.

"Not only do we now have a way to measure the presence of stars of ages a few billion years in distant galaxies, which is a range that is remarkably hard to measure, we even have found out what the sun will do when it dies", concluded Zijlstra.

However, several scientific models have suggested that the mass of our star is too low to produce a visible planetary nebula-anything less than two solar masses would produce one that would be too faint to see. It revealed in the wake of the ejection the star heats up three times faster than what has been noted in the previous models. The team used this model to see the brightness of the ejected envelope of stars that have different masses and ages.

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