A super-meaning that can explain the mysterious drawback of some exoplanets of the universe, found by the planetary planets of Espresso Instrument on NASA’s exoplanet survey satellite (TESS) and very large binoculars in Chile.
Jose Rodrigues of the Porto Institute of Astrophysics said, “This is a short extra for the long list of planets already known, but such discoveries are essential to improve our understanding of the planet’s formation and development mechanism.” statement“Many more (planets) will be required to convert our hypotheses into scientific certainty.”
ExoplanetName toi-512B, is located 218 Light year away. It was identified for the first time Tes In 2020, who saw the planet transit, or regularly in front, in front of its star, preventing some light of the star from reaching our convenience point in the universe. Depending on the amount of blocked light, astronomers measured the radius of toi-512B 1.54 times Earth size,
To confirm that toi-512B is a real planet, not a false-that is brought by activity on the star, Espresso Device Very big telescope Measure the radial velocity of the world stars. It is “vobbal” in the rotation of the star, which is brought by the gravity of the planet orbiting the star. The measurement of Espresso determines the mass of toi-512B up to 3.57 times the Earth.
After knowing its radius and mass, astronomers can calculate the average density of toi-512B, determining that it has a wholesale density of 5.62 grams per cubic centimeter. It is a bit dense than compared EarthThe average density of which is 5.52 grams per cubic centimeter.
If toi-512B was the size of the Earth with this density, we will estimate a solid rocky planet-but toi-512b is larger and more spacious than the Earth, and therefore the story is more complex.
The toi-512B revolves around his star every 7.1 days at a distance of just 9,863,797 km (6,129,079 mi). This means that it gets rather hot – it is very close to its star HabitatGetting 112 times more heat than your star as Earth. Its size also puts it down what researchers said “”Hot Neptune Desert,
Astronomers are getting innumerable sizes and public exoplanets, but seem to have a dramatic deficiency of the world between the radius of the Earth between 1.8 to 2.4 times. It is the above desert, and a theory NeptunePointing a world rich in gas and snow to its star, the stellar radiation blows up its environment, removes the gas and leaves a small world at the end of the process.
The second possibility is that it is the remaining heat from the formation of a planet that comes out of its interior and in its thick gaseous layer, heating it so that it can escape more easily. It is known as core-purd mass los.
Toi-512B could have once been a Neptune-like world that lost most of its gas. Depending on its density, mass and volume, the team of Rodrigues said what the internal structure of the planet could be. They conclude that the best-fit model describes a small interior core, which makes 13% of the mass of the planet, a mental contributes to 69% and up to 16% of the mass of the planet, with the remaining 2% now given to the gaseous layer. Compare this to the Earth, where the mass of water is only 0.02%.
However, if the toi-152B was reduced by stellar radiation, water or environment would not have survived at all. Instead, the team of Rodrigues suggests that core-powered large-scale losses are better explanation, especially the age of 8.235 billion of toi-152B (with uncertainty), as the Kor-Poward Mass Los is a process that can last for billions of years.
This is not to say that all the planets passing through the hot Neptune desert lose their gaseous envelopes in this way. It is possible that their gaseous layer can be removed on the basis of one or both solar radiation and core-powered mass loss, which depends on the planet and star. As Rodrigues said at the beginning of this article, astronomers require many more examples before starting to draw concrete conclusions.
The study also rejected another candidate planet, indicating in Tess observations. For follow -up, the planet can be a bit far and hard James Web Space Telescope To do transit spectroscopy – that is, studying the atmosphere of a planet when that planet moves its star and some starlight is filtered through the atmosphere – with the team of Rodrigues suggests that this process with JWST can be “tedious”. Instead, they propose that the Andes (Armzone High Dispenser Ichil Spectrograph) spectrometer at the upcoming 39-meter (128 ft) Very big telescope The European Southern Observatory in Chile may have better luck.
Conclusions about Toi-512B were published on 25 March Astronomy and Astronomy Physics,
