File:B1957 comp.tif
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DescriptionB1957 comp.tif |
English: B1957+20 |
Date | June 21, 2001 - observation, February 27, 2003 - release |
Source | http://chandra.harvard.edu/photo/2003/b1957/b1957_comp.jpg |
Author | X-ray: NASA/CXC/ASTRON/B.Stappers et al.; Optical: AAO/J.Bland-Hawthorn & H.Jones |
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Public domainPublic domainfalsefalse |
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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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 18:15, 16 July 2010 | 2,400 × 2,400 (16.51 MB) | ScienceApologist (talk | contribs) | {{Information |Description={{en|1=Scale Image is 1.2 arcmin per side Category Neutron Stars/X-ray Binaries Coordinates (J2000) RA 19h 59m 36.80s | Dec +20° 48’ 15.10" Constellation Sagitta Observation Dates June 21, 2001 Observation Time 12 |
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Image title | This composite X-ray (red/white) and optical (green/blue) image reveals an elongated cloud, or cocoon, of high-energy particles flowing behind the rapidly rotating Black Widow pulsar (the white point-like source). The pulsar is also moving through the galaxy at a high speed which creates an outer bow shock wave visible to optical telescopes. The pressure behind this outer shock wave creates a second shock wave that sweeps the cloud of high-energy particles back from the pulsar to form the cocoon. The Black Widow pulsar is emitting intense high-energy radiation that appears to be destroying a companion star through evaporation. It is one of a class of extremely rapidly rotating, very old neutron stars called millisecond pulsars. |
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Author | Chandra X-ray Observatory Center |
Copyright holder | http://chandra.harvard.edu/photo/image_use.html |
Width | 2,400 px |
Height | 2,400 px |
Compression scheme | Uncompressed |
Pixel composition | RGB |
Image data location | 36,600 |
Orientation | Normal |
Number of components | 3 |
Number of rows per strip | 2,400 |
Bytes per compressed strip | 17,280,000 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop CS3 Macintosh |
File change date and time | 22:05, 4 March 2008 |
Color space | Uncalibrated |