They find water vapor in the atmosphere of a “hot Neptune” outside the Solar System

Detectan vapor de agua en la atmósfera de un "Neptuno caliente" fuera del sistema solar

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14 ene 2022 17:13 GMT

TOI-674 b is located about 150 light-years from Earth, has a radius 5.25 times larger than Earth, is 23.6 times larger than our planet, and averages between 330 and 630 degrees Celsius.

According to a study that has not yet been reviewed, a team of scientists has identified water vapor in the exoplanet TOI-674 b. Uploaded This Tuesday at the prepress service arXiv.

Located 150 light-years from Earth, the planet has a radius of 5.25 times that of Earth and a mass of 23.6 times that of Earth. At the same time, its average temperature is estimated to be between 330 and 630 degrees Celsius, which is why it is classified as a “hot Neptune”.

Detection of water vapor in TOI-674 b, Informed For the first time since last June, this allows us to clarify how the planet formation process takes place, as pointed out by Ian Crossfield, one of the authors of the study.

“Measuring the atmospheric structure of such a gaseous planet helps to understand how the planet formed. Some models predict that such planets will form ‘dry’ far away from their star, but the water vapor we see will probably show that this is not the case.” Release From the University of Kansas.

For his part, Jonathan Brande, who led the study, points out that this analysis will help us better understand the Solar System, especially its gas giants.

“Uranus and Neptune do not describe well some of the formation patterns without intense migration inside and outside the outer solar system, and we do not have good measurements of what’s in their atmosphere,” the scientist says.

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“We have found thousands of exoplanets, many of the most common of which are more likely to resemble Uranus and Neptune than Earth, which makes it important to understand the diversity of exoplanets to understand the planets in our own solar system.” The brand points out.

Use of binoculars James Webb, Launched into orbit in December, will enable several new exoplanet discoveries, Crossfield believes.

“The discovery of water vapor on the planet using the Hubble Space Telescope is just a preview of how NASA’s recently launched the James Webb Space Telescope can study the exoplanet atmosphere,” he says.

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