A rare exoplanet that retains its atmosphere despite relentless radiation from a nearby star has been discovered.

A rare exoplanet This star, which should have been “stripped” by the powerful radiation of a nearby red giant star, instead gained an atmosphere, forcing scientists to rethink their theories about how planets die in extreme environments.

By name TIC365102760 B and nickname “PALM TREE Because of its habitability, the newly discovered planet demonstrates the great diversity of solar systems and the complexity of planetary evolution.

The planet belongs to the category of “hot Neptunes,” that is, giant exoplanets very similar to Uranus or Neptune, the most distant, icy giants of the Solar System, although they are closer to their stars and hotter.

This particular planet is 6.2 times larger than Earth, completes an orbit around its star every 4.2 days, and is about six times closer to its star than Mercury is to the Sun.

The process of stripping its atmosphere must have been slower than scientists thought.

They estimate that the planet is 60 times less dense than the densest “hot Neptune” discovered so far, and that it could no longer be habitable. 100 million years.

Exoplanets like these are often undiscovered because their small size makes them difficult to detect.

The research team used a new method to detect it.

“This is the smallest planet we’ve found around one of these red giants, and possibly the smallest mass planet orbiting a giant star we’ve ever seen,” he said. San Granblattan astrophysicist at Johns Hopkins University who led the study.

“That’s why he looks really weird.

“We don’t know why other smaller and denser ‘hot Neptunes’ still have atmospheres when they lose their atmospheres in less extreme environments,” he said.

The findings could help scientists better understand how atmospheres like Earth’s might have evolved, he said.

The findings were published in The Astronomical Journal.

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