NASA's Webb Peers Deeper into Mysterious Flame Nebula : 無料・フリー素材/写真
NASA's Webb Peers Deeper into Mysterious Flame Nebula / James Webb Space Telescope
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
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| 説明 | A fire collab 🔥This collage shows a near-infrared light view of the Flame Nebula from Hubble on the left, while the two insets at right show Webb's near-infrared look at two dusty regions within it. The Flame Nebula lies in the Orion Molecular Cloud Complex and is home to cosmic objects that are not quite planets, but are also so small their cores can’t sustain fusing hydrogen like full-fledged stars do - brown dwarfs. Decades of Hubble data was crucial in identifying candidates for further study, essentially handing the baton to Webb to take an in-depth look at this region using its infrared sensitivity. Webb took a look at the Orion Molecular Cloud Complex, looking for the faintest and the smallest of brown dwarfs. Brown dwarfs are very dim and much cooler than stars, making them hard to detect. When they are young, they are a bit warmer and brighter and easier to observe, making the Flame Nebula star-forming region (within this molecular cloud complex) a good place to look for them. Webb’s ability to see warm objects through dense dust is allowing Webb not only to find brown dwarf candidates, but also to explore their lowest mass limits. Though Webb has the infrared sensitivity to potentially see brown dwarfs as low-mass as half that of Jupiter, the lowest-mass objects scientists found are about 2-3 times the mass of Jupiter. The current hypothesis that this might be at or near the lower limit for the mass of brown dwarfs. This also takes into account the dynamics at play within the molecular clouds where these objects are born.Read more: science.nasa.gov/missions/webb/nasas-webb-peers-deeper-in...Image Credit: NASA, ESA, CSA, STScI, Michael Meyer (University of Michigan), Matthew De Furio (UT Austin), Massimo Robberto (STScI), Alyssa Pagan (STScI)Image description: A collage of three near-infrared images showing a dusty nebula. The left two-thirds of the collage is taken up by a Hubble image of the nebula. The remaining third is taken up by two Webb images, one atop the other. The Hubble image has a pillar of dense brown dust running through the nebula at a diagonal from 5 o’clock to 11 o’clock. Wispy plumes appear to fly off from the pillar toward the sides amid blue clouds of the same material, which are whiter near the pillar. There are many white stars spread throughout. Two separate, white squares, tilted about 30 degrees, outline two areas in the pillar. The upper square has the letter “A” to the top right, while the lower square is marked by the letter “B”. These labels correspond to the two, magnified images of the nebula at right, with the top image also labeled “A” and the bottom image labeled “B”. Both images contain a mixture of reds, blues and browns, and show red, blue, and white stars. |
| 撮影日 | 2025-03-10 10:15:47 |
| 撮影者 | James Webb Space Telescope , Greenbelt, MD, USA |
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