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sig08-018
2-Channel RCW 49This image of prolific star-forming region RCW 49 exposes breathtaking detail of this dark and dusty region, which is home to more than 2,200 stars. Shown here in two channels, 3.6 microns mapped as cyan and 4.5 microns mapped as red, dusty organic molecules called polycyclic aromatic hydrocarbons (PAHs) glow in the warmth of the starlight. At 4.5 microns, hot hydrogen gas glows very brightly, much like a neon light glowing in visible light, and can be prominently seen in the image. To download, choose your preferred resolution and file format below. "High-Resolution" files will always be the highest resolution and widest crop available, intended for print. Other resolutions are provided for convenient on-screen viewing. Screen-Resolution (750x750) : JPEG (216 KB)
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