File:Supernovas Portrait Gallery (1999-snrg - g21bluepurple2j).jpg
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Supernovas_Portrait_Gallery_(1999-snrg_-_g21bluepurple2j).jpg (482 × 400 pixels, file size: 160 KB, MIME type: image/jpeg)
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Structured data
Captions
Captions
Chandra X-ray Image of G21.5-0.9
Summary
[edit]DescriptionSupernovas Portrait Gallery (1999-snrg - g21bluepurple2j).jpg |
English: The identification of G21.5-0.9 as the remnant of a supernova explosion is based on indirect evidence from radio and X-ray observations. At both radio and X-ray wavelengths, it appears as round patch in the sky. Detailed observations with radio telescopes confirm that the radio waves are produced by high energy electrons spiraling around magnetic field lines (synchrotron radiation). The X-rays are probably produced by the same process, but the electrons involved have energies many thousands times higher than those that produce the radio waves. The favored theory is that the high-energy electrons responsible for both the radio and X-ray emission are produced by a rapidly rotating, highly magnetized neutron star left behind when a massive star exploded some 40,000 years ago. |
Date | 20 September 1999 (upload date) |
Source | Supernovas Portrait Gallery |
Author | NASA/SAO |
Other versions |
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Category InfoField | Supernovas & Supernova Remnants, Neutron Stars/X-ray Binaries |
Color Code InfoField | Intensity |
Constellation InfoField | Scutum |
Coordinates (J2000) InfoField | RA 18h 33m 33.50s |
Distance Estimate InfoField | 20,000 light years |
Scale InfoField | 7.5 arcmin across. |
Instruments InfoField | ACIS |
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This media is a product of the Chandra X-ray Observatory Credit and attribution belongs to the Chandra X-ray Center, NASA/SAO/Penn State University/MIT |
Licensing
[edit]Public domainPublic domainfalsefalse |
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This file is in the public domain in the United States 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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File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 09:35, 28 May 2024 | ![]() | 482 × 400 (160 KB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://chandra.si.edu/photo/1999/snrg/g21bluepurple2j.jpg via Commons:Spacemedia |
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File usage on Commons
The following 7 pages use this file:
- File:Chandra X-ray Image of G21 5-0 9 with Scale Bar (1999-snrg-more-2).jpg
- File:Chandra X-ray Image of G21 5-0 9 with Scale Bar (1999-snrg-more-2).tiff
- File:E0102 - Chandra Supernovas Portrait Gallery (1999-snrg - e0102electricbluej).jpg
- File:E0102 - Chandra Supernovas Portrait Gallery (1999-snrg - e0102electricbluet).tiff
- File:Supernovas Portrait Gallery (1999-snrg - g21bluepurple2t).tiff
- File:Supernovas Portrait Gallery (1999-snrg - pulsarV2BBB).jpg
- File:Supernovas Portrait Gallery (1999-snrg - pulsarV2BBB).tiff
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Image title |
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Author | Chandra X-ray Observatory Center |
Credit/Provider | NASA/CXC/SAO |
Source | Chandra X-ray Observatory |
Headline | A supernova remnant in the constellation Scutum. |
Short title |
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Usage terms | |
Date and time of data generation | 20 September 1999 |
Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop CS4 Windows |
File change date and time | 10:00, 21 February 2013 |
Exif version | 2.21 |
Color space | sRGB |
Image width | 482 px |
Image height | 400 px |
Date metadata was last modified | 05:00, 21 February 2013 |
Date and time of digitizing | 04:46, 21 December 2012 |
Unique ID of original document | BB6CD5BDFDA6FAF09E4630C74BF76CC2 |
Keywords | G21.5-0.9 |
Contact information | cxcpub@cfa.harvard.edu
60 Garden St. Cambridge, MA, 02138 USA |
IIM version | 4 |
Structured data
Items portrayed in this file
depicts
image/jpeg
400 pixel
482 pixel
163,911 byte
d6e71201f320526121b0009ee21f509b70e74f16
20 September 1999
2amt3doi4t2d68bw36trlr5dv04rpo99x7hzy30ua7we4z15r4
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