Astronomers discover exotic atmosphere on scorching hot exoplanet Cuancoá. ‘Like finding a snowball that hasn’t melted in a fire’
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External lucker clarification in orbit near the host star. | Credit: Nazarii Nesheshenskyi/Getty Images
Scientists who use James Web telescope for space in the burning atmosphere of the hot exterior LTT 9779 B.
Cuancoá officially, this is the size of Neptune Exoplanet It was discovered in 2020 and the sun’s star, every 19 hours. With a mass about 29 times landLTT 9779 B lies insideHot Neptune Desert– A group of planets that a few are known to be exceptionally present, which makes them a rare and interesting discovery.
“Finding a planet of this size near the host star is similar to finding a snowy ball that did not melt in a fire,” said postgraduate student Luis Philip Coleb of the University of Montreal at A. press release. “It is a testament to the diversity of planetary systems and provides a window on how the planets develop under extreme conditions.”
The team used the SOSS (SOSS) (SOSS) in the JWST images near infrared and unpaved spectral (Niriss) to study LTT 9779b. This tool discovers the light in the nearby infrared range-the wavelengths directly outside the visible light-which makes it especially effective to analyze the properties of the properties, distant galaxies and dimmed things. These capabilities exceed the capabilities of previous telescopes, allowing scientists to reveal the details that were far from hand.
For LTT 9779 B, the team used SOSS mode to detect water vapor and study the reflection light from the clouds, which are formed on the side of the outdoor planets day. Love Earth’s moonLTT 9779 B closed civil, which means that one of its faces will always face his star – where he suffers from temperatures of about 3600 degrees Fahrenheit (2000 ° C) as a result of its near orbit – while its night side will remain in the permanent darkness.
“This planet provides a unique laboratory to understand how clouds interact and heat transfer in the atmosphere of very radiant worlds,” a Colombian stated.
Ltt 9779 b. | Credit: Université de Montréal
On the closed gas giants and islands, it is rotated in the atmosphere with differences in the strict temperature between the daytime and night sides. The hot air rises on the side of the incendiary day, while the most cold and intense air is on the side of the night, which creates a stream moved by the thermal load. Due to the effect of Coriolis caused by the rotation of the planet, this blood circulation generates a strong jet flowing to the east.
On LTT 9779 B, this heat transmission is caused by one of the cold western days, as temperatures decrease sufficiently to form clouds. It is also believed that the presence of these clouds is linked to the planet’s upper air metals, which enhances the formation of reflective molecules such as aerosols. This hypothesis is supported by Altt 9779 B of high -white, unusually, and this means that It reflects more sunlight Other planets have a similar temperature.
The research team wrote in their paper: “This partial coverage of clouds on its side, which reflects a certain part of the stellar flow, may affect the planet’s energy budget,” the research team wrote in their paper.
They also found signs of water vapor on the side of LTT 9779 B, which confirms that scientists can study the atmosphere of cloudy external planets by analyzing the heat they give.
These results indicate that the thick clouds of the planet and high repercussions may be associated with its composition in the atmosphere and circulatory patterns.
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“By modeling the atmosphere of LTT 9779b in detail, we started opening operations that lead strange weather patterns,” said Bjorn Bennik, the co -author of the study.
The team is now improving its models using additional notes, with the aim of better understanding how to form clouds and continues to such harsh environments.
“We have not finished collecting information about this planet yet,” Jake Taylor has concluded from Oxford University Physics Department. “We are currently using notes from Hubble Space Telescope and Very large telescope To study the structure of the Dayside cloud in more detail to learn as much as possible. “
It was the study of the LTT 9779 B atmosphere It was published in the Nature Astronomy magazine.
