File:Polycyclic Aromatic Hydrocarbons In Space.jpg
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| 描述 |
English: http://www.spitzer.caltech.edu/images/3230-sig10-013-Bright-Lights-Green-City
Two extremely bright stars illuminate a greenish mist in this image from the Spitzer Space Telescope's "GLIMPSE360" survey. This mist is comprised of hydrogen and carbon compounds called polycyclic aromatic hydrocarbons (PAHs), which also are found here on Earth in sooty vehicle exhaust and on charred grills. In space, PAHs form in the dark clouds that give rise to stars. These molecules provide astronomers a way to visualize the peripheries of gas clouds and study their structures in great detail. They are not actually green; but are color coded in these images to allow scientists see their glow in infra-red. This image is a combination of data from Spitzer and the Two-Micron All-Sky Survey (2MASS). |
| 日期 | |
| 來源 | Spitzer |
| 作者 | NASA/JPL-Caltech/2MASS/SSI/University of Wisconsin |
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本作品由NASA創作，屬於公有領域。根據NASA的版權政策：“NASA的創作除非另有聲明否則不受版權保護。”（參見：Template:PD-USGov/zh，NASA版權政策或JPL圖像使用政策） |  |
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| 日期/時間 | 縮圖 | 尺寸 | 用戶 | 備註 | |
|---|---|---|---|---|---|
| 目前 | 2010年8月23日 (一) 17:13 | | 6,000 × 4,500（4.52 MB） | Originalwana | {{Information |Description={{en|1=Two extremely bright stars illuminate a greenish mist in this image from the Spitzer Space Telescope's "GLIMPSE360" survey. This mist is comprised |
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