File:Zeta Orionis X-ray.jpg
Zeta_Orionis_X-ray.jpg (420 × 338 pixels, file size: 112 KB, MIME type: image/jpeg)
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Summary
[edit]DescriptionZeta Orionis X-ray.jpg |
English: This figure is a composite of the X-ray spectrum and CCD image of Zeta Orionis. The Advanced CCD Imaging Spectrometer (ACIS) image (upper right) clearly shows that Zeta Orionis is a binary, or, double, star system. The recent results by Waldron and Cassinelli focused on the larger "A" component of the system. The spatial resolution between the "A" and "B" elements of Zeta Orionis are a mere 2.4 arcseconds away from one another, demonstrating the fantastic resolution capable by the Chandra X-ray Observatory. The color contours in the image are scaled logarithmically in relationship to their X-ray intensities.
The X-ray emission line spectrum (lower left) represents the Chandra High-Energy Transmission Grating Medium Energy Grating observation of Zeta Orionis "A". By determining the wavelength associated with each emission line, scientists can identify the atomic species and their states of ionization, which can be used to determine the temperature range of the plasma. Furthermore, by measuring the relative line strengths of certain ions, scientists can extract densities and specific temperatures of the X-ray emitting plasma. One major difference between this O-star spectrum and that of other stars such as the Sun is that the X-ray emission lines are significantly broader, indicating a larger dispersion in plasma velocities. |
Date | |
Source | CHANDRA X-ray Observatory CXC Operated for NASA by SAO, url=http://chandra.harvard.edu/photo/2000/1078/ |
Author | NASA/EIT/W.Waldron, J.Cassinelli |
Permission (Reusing this file) |
Images from NASA usually are free of copyright. |
Image is 27 arcsec across. RA 05h 40m 45.50s | Dec -01° 56' 34" in Orion. Observation date: April 8, 2000. Instrument: ACIS.
Licensing
[edit]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 | 16:37, 25 November 2009 | 420 × 338 (112 KB) | Marshallsumter (talk | contribs) | {{Information |Description={{en|1=This figure is a composite of the X-ray spectrum and CCD image of Zeta Orionis. The Advanced CCD Imaging Spectrometer (ACIS) image (upper right) clearly shows that Zeta Orionis is a binary, or, double, star system. The re |
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Orientation | Normal |
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Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Adobe Photoshop CS3 Macintosh |
File change date and time | 10:11, 8 September 2008 |
Color space | sRGB |