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File:Xi Hydrae.jpg

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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

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15 May 2002

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Date/TimeThumbnailDimensionsUserComment
current21:12, 16 March 2022Thumbnail for version as of 21:12, 16 March 20221,280 × 1,269 (82 KB)Ixfd64higher resolution
08:37, 5 October 2010Thumbnail for version as of 08:37, 5 October 20101,280 × 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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