Heavy hydrogen in 3I/ATLAS's methane points to a frigid birthplace
JWST data suggest the comet’s ice is mixed with dust and carbon dioxide, pointing to formation in a very cold planet-forming disk.
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6 Articles
James Webb Space Telescope uncovers new clues about the origins of 'interstellar invader' comet 3I/ATLAS
JWST has found that the ice on the interstellar object 3I/ATLAS is strange and is less like the comets in our solar system and more like bodies that orbit the sun beyond Neptune.
Heavy hydrogen in 3I/ATLAS's methane points to a frigid birthplace
The interstellar comet 3I/ATLAS carries a chemical clue to conditions in the planetary system of its origin, locked away long before it reached our sun. Its methane signature is unusually rich in heavy hydrogen, suggesting that the comet's frozen ingredients took shape in an intensely cold environment around another star—or in the cloud that preceded it.
The interstellar comet 3I/Atlas still raises many questions. A team of scientists has now found clues to its origin. The James-Webb Space Telescope has helped with this. read more on t3n.de
The methane found on the 3I/ATLAS interstellar comet contains an unusually large amount of heavy hydrogen. This indicates that the ice components of the object may have formed under extreme cold conditions, either in the vicinity of another star or in the gas cloud from which the comet originated.
Researchers have published new results from their study of comet 3I/ATLAS. The comet was studied by the Webb Space Telescope and astronomers discovered ...
The methane of the interstellar comet 3I/ATLAS contains unusually large amounts of deuterium, the heavy form of hydrogen. With a D/H ratio of 3.18 percent, the value is 13 times higher than that of the comet 67P and above all methane measurements in the solar system. The isotope trace fits to ice that could have arisen in a very cold and metal-poor environment. Greenbelt (U.S.A.). Interstellar [...] The article Methane of the interstellar comet …
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