580 light years from Earth, a planet larger than Jupiter, soft as marshmallows, bathes in the pinkish-red light of a red dwarf star.
Research by planetary astronomer Shubham Kanodia of the Carnegie Institution’s Earth and Planetary Laboratory in Washington DC – USA discovered the planet “soft” named TOI-3757b from the massive data warehouse of NASA’s TESS Exoplanet Survey satellite.
According to the sheet Spacethe “mother” of the planet is red dwarf star TOI-3757, located 580 light years from Earth in the constellation of Ngu Phu. This makes TOI-3757b become unique.
Graphic image representing the marshmallow planet (pan)
Graphic image depicting the marshmallow planet (flare) glowing with a pink-orange light due to its illumination by a red dwarf star – (Photo: NOIRLab/NSF/AURA)
According to Dr Kanodia, giant planets are very difficult to form around red dwarf stars, with the few planets observed being very far from the parent star. It is the first nearby gas planet observed around this type of star, although red dwarfs are the most abundant type of star in the galaxy containing the Milky Way Earth, the ratio can be as high as 73%.
The reason is that red dwarfs with powerful radiation can rob the atmosphere of any surrounding gas giants.Oh. Despite everything, TOI-3757 exists, but of course with particular properties.
According to the sheet Scientific alert, it is slightly larger than Jupiter – the largest planet in the solar system – but has a very low mass, only about 85 times that of Earth. For comparison, Jupiter has a mass 318 times that of Earth.
The density of this planet is 0.27 grams per cubic centimeter. It is an extremely soft planet, so soft that we don’t really know how it could have formed so close to its star: it only takes 3.43 days to orbit the parent star.
Dr. Kanodia and his colleagues think there may be two factors that influence it to be as light as a marshmallow.
The first one, a gas giant formed from a rocky core, around which gas accumulates to form a thick, expanding atmosphere. Because this red dwarf contains fewer heavy elements than other red dwarfs, the rocky core forms a little more slowly, which will delay the accumulation of gases and affect the density of the world.
Monday, the orbit appears somewhat oval, meaning that its distance from the star varies. Perhaps as we get closer, the atmosphere warms and expands.
The team hopes to discover many more marshmallow worlds like this, to help understand how they form and survive in a place where they shouldn’t appear.
The research has just been published in a scientific journal The Astronomical Journal.
Article source: NLD
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580 light years from Earth, a planet larger than Jupiter, soft as marshmallows, bathes in the pink-red light of a star…