That tells us quite a lot about how this planet formed.” “In this paper, we have determined how many molecules there are relative to the primary component of the gas, which is hydrogen, the most common element in the universe. Duncan Professor in the Physical Sciences in the College of Arts and Sciences and a co-author of the study. “It appears that every giant planet is different, and we’re starting to see those differences thanks to JWST,” said Jonathan Lunine, the David C. This illustration shows the cold side of the Webb telescope, where the mirrors and instruments are positioned. They also provide insight into planet formation. These findings, published in “High Atmospheric Metal Enrichment for a Saturn-mass Planet,” in the journal Nature on March 27 are an important first step toward obtaining similar measurements for a large sample of exoplanets in order to search for statistical trends, the researchers said. In addition, the diagnostic carbon-to-oxygen ratio of HD149026b, also known as “Smertrios,” is elevated relative to our solar system. Using NASA’s James Webb Space Telescope ( JWST), the researchers discovered that the atmosphere of exoplanet HD149026b, a “hot jupiter” orbiting a star comparable to our sun, is super-abundant in the heavier elements carbon and oxygen – far above what scientists would expect for a planet of its mass. But out in the galaxy, the atmospheric compositions of giant planets do not fit the solar system trend, an international team of astronomers has found. Gas giants orbiting our sun show a clear pattern the more massive the planet, the lower the percentage of “heavy” elements (anything other than hydrogen and helium) in the planet’s atmosphere. Astronomers using NASA’s James Webb Space Telescope have discovered that the atmosphere of exoplanet HD149026b is super-abundant in the heavier elements carbon and oxygen – far above what scientists would expect for a planet of its mass, and the carbon-to-oxygen ratio is elevated relative to our solar system, which could provide insight into planet formation and an important first step toward obtaining similar measurements for a large sample of exoplanets in order to search for statistical trends.
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