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Summary
| Description |
English: A computer-generated illustration of one possible non-radial oscillation mode in the giant star xi Hya. The blue parts contain particles in the upper stellar atmosphere moving away from the stellar centre, hence they cause a "blue-shift" (towards shorter wavelengths) in the spectrum for the observer. At the same time, particles in the red parts move towards the stellar centre and cause a "red-shift" (towards longer wavelengths). Particles in the white regions do not move during the oscillation cycle. Half an oscillation cycle later, the red parts will have become blue and vice versa. |
| Date | |
| Source | http://www.eso.org/public/images/eso0215b/ |
| Author | ESO |
Licensing
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:12, 16 March 2022 | | 1,280 × 1,269 (82 KB) | Ixfd64 | higher resolution |
| 08:37, 5 October 2010 |  | 1,280 × 1,269 (76 KB) | Marhorr | {{Information |Description={{en|1=A computer-generated illustration of one possible non-radial oscillation mode in the giant star xi Hya. The blue parts contain particles in the upper stellar atmosphere moving away from the stellar centre, hence they caus |
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