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 | |
| 来源 | Spitzer |
| 作者 | NASA/JPL-Caltech/2MASS/SSI/University of Wisconsin |
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本文件完全由NASA创作，在美国属于公有领域。根据NASA的版权方针，NASA的材料除非另有声明否则不受版权保护。（参见Template:PD-USGov/zh、NASA版权方针页面或JPL图片使用方针。） |  |
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| 日期/时间 | 缩略图 | 大小 | 用户 | 备注 | |
|---|---|---|---|---|---|
| 当前 | 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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