Green stain shows a place where Aurora reveals the sky of Neptune.
NASA, ESA, CSA, STSCI, Heidi Hammel (AURA), Henrik Melin (Northumbria University) (NASA-GSFC)
For the first time, the researchers discovered the infrared aurora, which swirled in the atmosphere of the Neutral, and confirmed decades of scientific guessing.
When NASA’s Voyager 2 Mission flew by Neptune in 1989, I found a hint of Aurora activities in Ice Giant’s clouds. But scientists could not confirm the phenomenon at that time because the existing organizations were too weak. Now James Webb Space Telescope (JWST) has finally provided the power to detect it.
“This was actually to satisfy the expectations of several years. Heidi Hamel At the university association for astronomy research of Washington DC.
Hammel and her colleagues used JWST’s NIRSPEC, a powerful infrared imaging tool, to capture the naval spectroscopy of the Neptune and analyze the various wavelengths released by Earth. In 2023, researchers used this tool to detect them. Aurora of the infrared rays of Cheonwangseong. This time it was found in Neptune.
The image also allowed Hammel and her team to start to organize Neptune’s magnetic maps. This is especially interesting because the earth is known to have the most unusual self -play in the solar system.
Unlike Earth, Jupiter or Saturn, the magnetic pillars of the Neutral are not centered on the rotational pole. “They are offset by almost half of the earth’s radius,” Hammel said. As a result, Aurora is much closer to the equator than the region where South America is sitting on Earth.
In addition to detecting Aurora, JWST observation indicates that the ionizing layer of the naval grain, a layer of a subdivided particle, is being cooled. On average, Voyager 2 is about 10 % more colder than 36 years ago. Similar changes were found in Cheonwangseong.
The author of a new study is not sure why this cooling has occurred, but I hope to provide more clues with the scheduled JWST observation period in 2026.
Astronomy and Ice Science: Sweden
Traveling to northern Sweden in winter, from the noticeable Alpine forests to the picturesque snow -covered mountains, it really gives you a magical experience.
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