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Contents |
Summary
This graph of infrared data from NASA's Spitzer Space Telescope tells astronomers that a distant galaxy called IRAS 08752+3915 is experiencing a storm of tiny crystals made up of silicates. The crystals are similar to the glass-like grains of sand found on Earth's many beaches.
The data were taken by Spitzer's infrared spectrograph, which splits light open to reveal its rainbow-like components. The resulting spectrum shown here reveals the signatures of both crystalline (green) and non-crystalline (brown) silicates.
Spitzer detected the same crystals in more than 20 other similar galaxies, all belonging to a class called ultraluminous infrared galaxies. These extremely bright and dusty galaxies usually consist of two galaxies in the process of smashing into each other. Astronomers believe massive stars at the hearts of the galaxies are churning out clouds of silicate crystals. This phenomenon may represent a short-lived phase in the evolution of galactic mergers.
File info
Description | Crystal Storm in Distant Galaxy |
Date | |
Source | https://gallery.spitzer.caltech.edu/Imagegallery/image.php?image_name=ssc2006-06a |
Author | NASA/JPL-Caltech/H. W. W. Spoon (Cornell University) |
Permission (Reusing this file) |
https://www.spitzer.caltech.edu/Media/mediaimages/copyright.shtml |
Individual images
see https://gallery.spitzer.caltech.edu/Imagegallery/image.php?image_name=ssc2006-06a High quality tif files also avaliable.
Licensing
This file is in the public domain because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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Warnings:
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Public Domain
EXIF data: | |
File name | ssc2006-06a.jpg |
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Size, Mbytes | 1.3427578125 |
Mime type | image/jpeg |
Orientation of image | 1 |
Image resolution in width direction | 300 |
Image resolution in height direction | 300 |
Unit of X and Y resolution | 2 |
Color space information | 65535 |
Exif image width | 2999 |
Exif image length | 2399 |
Software used | Adobe Photoshop CS2 Macintosh |
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