Image:Stellar nebula simulation.jpg

维基百科，自由的百科全书

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This image shows a snapshot from a hydrodynamics simulation movie by Vincent Icke at http://www.strw.leidenuniv.nl/~icke/html/VincentScience.html. Colour channels are coded as follows: red is the gas density, green the gas pressure, and blue is the absolute value of the velocity. This image is a logarithmic rendering of the actual flow, in order to improve the dynamic range. Superimposed on the plot is an image of the shape of the original disk, before the wind from the central object blew it up. Note the antisymmetric or `point-symmetric' structure of the resulting nebula: the shape is symmetric under inversion through the central star.

The GFDL license on Prof Icke's homepage releases this image under a GFDL license.

Image by Vincent Icke

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License".

This work is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This work is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

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来自“http://zh.wikipedia.org../../../s/t/e/Image%7EStellar_nebula_simulation.jpg_ba88.html”

Image:Stellar nebula simulation.jpg

维基百科，自由的百科全书

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