ESO：遥远星系的3D图
来源：欧洲南方天文台 ESOCombining the twin strengths of the NASA/ESA Hubble Space Telescope’s acute eye, and the capacity of ESO’s Very Large Telescope (VLT) to probe the motions of gas in tiny objects. Astronomers have obtained exceptional 3D views of distant galaxies, seen when the Universe was half its current age. The VLT’s FLAMES/GIRAFFE spectrograph resolve the motions of the gas in these distant galaxies by measuring the velocity of the gas at various locations in these objects. This diagramme illustrates this by showing a sketch of a remote galaxy (in the box), how Hubble sees it (middle panel) and the gas motion measured with the VLT (left panel). In the latter, parts which are red are moving away from us, while those that are blue are moving towards us.
http://www.eso.org/gallery/modules/rating/images/transparent.gifhttp://www.eso.org/gallery/modules/rating/images/transparent.gifhttp://www.eso.org/gallery/modules/rating/images/transparent.gifhttp://www.eso.org/gallery/modules/rating/images/transparent.gifhttp://www.eso.org/gallery/modules/rating/images/transparent.gif Comparisons with computer simulations suggest that the observations of a remote galaxy which presents very peculiar motions, as revealed by Hubble and ESO’s Very Large Telescope, can be explained by the collision of two spiral galaxies. The simulations shows how the two galaxies merge to produce a galaxy looking similar to what the NASA/ESA Hubble Space Telescope observed, and with internal motions similar to what the FLAMES/GIRAFFE spectrograph revealed. 没说的，一定错不了——下 看了一下,真不错, 没说的，一定错不了——下
qqq111 发表于 2009-3-27 22:10 http://www.astronomy.com.cn/bbs/images/common/back.gif好图啊！::42:: 好东西~~但有点不懂~~呵呵~~ 见笑了，英语不太好啊，图片上面的解说看不太懂啊！
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