It all started in May 2020 when kishalai Di observed with a special camera from the Caltech Observatory a star that began to shine a hundred times more than usual for about ten days, and it was located in the galaxy, about 12 thousand light-years from Earth.

 

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Edited  by |ANNA Sam

Space  section -  CJ journalist

World - - May 4, 2023

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  A star located near the constellation of Vulture experienced a natural asymmetrical inflation due to its old age, which made it swallow the planet that was very close to it, according to what astronomers observed after observing for the first time a phenomenon of this kind.

They had previously monitored indicators of such an event and felt its consequences. What they lacked was "star tuning at this very moment, when a planet is experiencing a similar fate," said MIT Kavli Institute researcher and lead author of the study published Wednesday in the journal Nature keshalai D.

And by the way, this is what awaits the Earth, but after about five billion years, when the sun is nearing the end of its existence as a yellow dwarf and swells to become a red giant. At best, its size and temperature will turn the Earth into just a big molten rock. And in the worst case, it will disappear completely.

He expected to fall on what he was looking for, which is to observe a binary star system with two stars, one in orbit around the other. And the larger Star tears the shell of the smaller one, and with each "bite," a light emits.

"It looked like a merger of stars," the astronomer said during a presentation of the study, which was co-authored by other authors of the Harvard Smithsonian and Caltech American research institutes. But the analysis of the light emitted by the star will reveal that there are clouds of particles that are too cold to come from the fusion of stars.

In particular, the team found that the "sun-like" Star released a thousand times less energy than it would have if it had merged with another star. And this amount of detected energy is equal to that of a planet like Jupiter.

On a cosmic scale calculated in billions of years, its end was very fast. Especially since it was "very close to the star, it orbited around it in less than a day," Dee said.

The observations showed that the planet's atmosphere was torn apart by the gravitational forces of the star for at most a few months before it was absorbed. It was this last stage that produced a luminous glow for about ten days.

Miguel Montargis, an astrophysicist at the Paris-PSL Observatory, explained that "the star swallows something much colder than its surface, by thousands of degrees", that is, "as if an ice cube were placed in a pot filled with boiling water, which it is advisable not to do because of heat exchange".

As part of this interaction, the star released large clouds of gas into interstellar space and then cooled for several months to turn into clouds of dust.

And the digestion process went smoothly, according to the co-author of the study, an astrophysicist at the "Harvard-Smithsonian" Center for Astrophysics Morgan MacLeod. The scientists then saw "the star slowly contract and return to its previous size," he said.

Astronomers believe that such an event may occur several times a year in our galaxy, which includes at least a hundred billion stars and perhaps at least the same amount of planets.

"It is possible that now that we have observed this event, we will observe many others, and all these events will help us to get a better idea of the future of the solar system," Montargis said.

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