从人造卫星GALEX看仙女座大星系
[align=center][color=red][b]影像提供:[/b] [/color][url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.galex.caltech.edu/TEAM/investigators.html&prev=/search%3Fq%3Dnasa%25E6%25AF%258F%25E6%2597%25A5%25E4%25B8%2580%25E5%259B%25BE%26complete%3D1%26hl%3Dzh-CN%26newwindow%3D1%26sa%3DG&usg=ALkJrhgfhCLVwmFQ36BdBwzPFoMUfnCqIw][color=red]GALEX team[/color][/url][color=red] , [/color][url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.galex.caltech.edu/&prev=/search%3Fq%3Dnasa%25E6%25AF%258F%25E6%2597%25A5%25E4%25B8%2580%25E5%259B%25BE%26complete%3D1%26hl%3Dzh-CN%26newwindow%3D1%26sa%3DG&usg=ALkJrhj0pcx2g1ztJ_QRK3JxEBwSrDqt_g][color=red]Caltech[/color][/url][color=red] , [/color][url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.nasa.gov/&prev=/search%3Fq%3Dnasa%25E6%25AF%258F%25E6%2597%25A5%25E4%25B8%2580%25E5%259B%25BE%26complete%3D1%26hl%3Dzh-CN%26newwindow%3D1%26sa%3DG&usg=ALkJrhi0fvXmFaSDpJW_K2JGkMFkcdwDBQ][color=red]NASA[/color][/url] [/align][img]http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/image/0312/m31_galex_big.jpg[/img]
[color=green][b]说明:[/b]为什么仙女座大星系会有一个大环？ [align=left]用[url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://imagers.gsfc.nasa.gov/ems/uv.html&prev=/search%3Fq%3Dnasa%25E6%25AF%258F%25E6%2597%25A5%25E4%25B8%2580%25E5%259B%25BE%26complete%3D1%26hl%3Dzh-CN%26newwindow%3D1%26sa%3DG&usg=ALkJrhgOn02NJLZhzR5UXSCU_85dCaECZQ]紫外线[/url]来看这个离我们[url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.seds.org/messier/more/mw.html&prev=/search%3Fq%3Dnasa%25E6%25AF%258F%25E6%2597%25A5%25E4%25B8%2580%25E5%259B%25BE%26complete%3D1%26hl%3Dzh-CN%26newwindow%3D1%26sa%3DG&usg=ALkJrhhshfL_OeIOZ8OkSzPYH4pOMy4Hww]银河系[/url]最近的大型星系时，它看起来比较像[url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap020909.html&prev=/search%3Fq%3Dnasa%25E6%25AF%258F%25E6%2597%25A5%25E4%25B8%2580%25E5%259B%25BE%26complete%3D1%26hl%3Dzh-CN%26newwindow%3D1%26sa%3DG&usg=ALkJrhhLHI_ox7XbihYMmUTBmW5Wo2Wh3A]环状星系[/url] ，而比较不像[url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap030911.html&prev=/search%3Fq%3Dnasa%25E6%25AF%258F%25E6%2597%25A5%25E4%25B8%2580%25E5%259B%25BE%26complete%3D1%26hl%3Dzh-CN%26newwindow%3D1%26sa%3DG&usg=ALkJrhjx2dKqerm-DRkDGCYz4BdnIkdz7Q]螺旋星系[/url] 。 [/align][align=left]这一张最近才公布的漂亮影像，是将数张由今年四月才发射的人造卫星- [url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.galex.caltech.edu/ABOUT/about.html&prev=/search%3Fq%3Dnasa%25E6%25AF%258F%25E6%2597%25A5%25E4%25B8%2580%25E5%259B%25BE%26complete%3D1%26hl%3Dzh-CN%26newwindow%3D1%26sa%3DG&usg=ALkJrhin4q096H-lUjyPS4wEh-wmK_jxKA]星系演化探测船(GALaxy Evolution Explorer, GALEX)[/url]所拍摄的影像，组合而成的[url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap021021.html&prev=/search%3Fq%3Dnasa%25E6%25AF%258F%25E6%2597%25A5%25E4%25B8%2580%25E5%259B%25BE%26complete%3D1%26hl%3Dzh-CN%26newwindow%3D1%26sa%3DG&usg=ALkJrhgunka_zBjgUbDKqcjN_HjpOVqOdg]仙女座大星系[/url] (M31 )。 [/align][align=left][url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.galex.caltech.edu/popups/gallery-M31.html&prev=/search%3Fq%3Dnasa%25E6%25AF%258F%25E6%2597%25A5%25E4%25B8%2580%25E5%259B%25BE%26complete%3D1%26hl%3Dzh-CN%26newwindow%3D1%26sa%3DG&usg=ALkJrhhx6AyXqYVMRlDSO3jVLE8T1ZiVdA]影像中[/url]的紫外线波段已经利用数位处理将它们移到可见光部分。 [/align][align=left]画面中明显地可以看出[url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://adsabs.harvard.edu/cgi-bin/nph-bib_query%3Fbibcode%3D1964ApJS....9...65V&prev=/search%3Fq%3Dnasa%25E6%25AF%258F%25E6%2597%25A5%25E4%25B8%2580%25E5%259B%25BE%26complete%3D1%26hl%3Dzh-CN%26newwindow%3D1%26sa%3DG&usg=ALkJrhgMBMRLinh1V3IemzTK1I64L6vJCg]蓝色的年轻恒星[/url]形成[url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap010612.html&prev=/search%3Fq%3Dnasa%25E6%25AF%258F%25E6%2597%25A5%25E4%25B8%2580%25E5%259B%25BE%26complete%3D1%26hl%3Dzh-CN%26newwindow%3D1%26sa%3DG&usg=ALkJrhiRmNR95VKOqzuHo6PD8aA5XXx8aw]星环[/url] ，并在其他远离[url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap000121.html&prev=/search%3Fq%3Dnasa%25E6%25AF%258F%25E6%2597%25A5%25E4%25B8%2580%25E5%259B%25BE%26complete%3D1%26hl%3Dzh-CN%26newwindow%3D1%26sa%3DG&usg=ALkJrhhKAwP1L2FEY41QVQNN_FIeQ0O_HA]星系中心[/url]的恒星形成区域闪烁。 [/align][align=left]这个直径150000- [url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://chandra.harvard.edu/photo/cosmic_distance.html&prev=/search%3Fq%3Dnasa%25E6%25AF%258F%25E6%2597%25A5%25E4%25B8%2580%25E5%259B%25BE%26complete%3D1%26hl%3Dzh-CN%26newwindow%3D1%26sa%3DG&usg=ALkJrhiZylCRaKgqsBkfJv71xvIZZy_-LQ]光年[/url]的星环的起源至今仍是未知，但是似乎与环绕仙女座星系的[url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap021202.html&prev=/search%3Fq%3Dnasa%25E6%25AF%258F%25E6%2597%25A5%25E4%25B8%2580%25E5%259B%25BE%26complete%3D1%26hl%3Dzh-CN%26newwindow%3D1%26sa%3DG&usg=ALkJrhhbZmKSt-JwaEeeNV0zEQEPkBY9Dw]卫星星系[/url]之间的[url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap020506.html&prev=/search%3Fq%3Dnasa%25E6%25AF%258F%25E6%2597%25A5%25E4%25B8%2580%25E5%259B%25BE%26complete%3D1%26hl%3Dzh-CN%26newwindow%3D1%26sa%3DG&usg=ALkJrhjXp-hAB3GfPD06dz708XeCgjtHNA]重力交互作用[/url]有关。 [/align][align=left][url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.seds.org/messier/m/m031.html&prev=/search%3Fq%3Dnasa%25E6%25AF%258F%25E6%2597%25A5%25E4%25B8%2580%25E5%259B%25BE%26complete%3D1%26hl%3Dzh-CN%26newwindow%3D1%26sa%3DG&usg=ALkJrhiPIJhi0ZHzMyMosF0oYKnkUlp7Yg]M31[/url]是位于300万光年远处。 [/align][align=left]由于它足够亮，因此即使不用望远镜也可以在[url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.astronomical.org/constellations/and.html&prev=/search%3Fq%3Dnasa%25E6%25AF%258F%25E6%2597%25A5%25E4%25B8%2580%25E5%259B%25BE%26complete%3D1%26hl%3Dzh-CN%26newwindow%3D1%26sa%3DG&usg=ALkJrhgX0HXk9bj-zfPFAdLigHxlx1Plig]仙女[/url][url=http://203.208.39.99/translate_c?hl=zh-CN&sl=zh-TW&u=http://en2.wikipedia.org/wiki/Constellations&prev=/search%3Fq%3Dnasa%25E6%25AF%258F%25E6%2597%25A5%25E4%25B8%2580%25E5%259B%25BE%26complete%3D1%26hl%3Dzh-CN%26newwindow%3D1%26sa%3DG&usg=ALkJrhitEA__jy65OnjjoXQ5r9dEEAd07g]座[/url]方向看到它。[/color] ::42:: ::42:: ::42:: [size=2][color=magenta](转自成大天文学教室)[/color][/size][/align]
[[i] 本帖最后由 zheng123 于 2008-8-18 06:08 编辑 [/i]] 相当的漂亮啊！ 很漂亮，和地球上看不太一样。 好图...存了....::070821_13.jpg:: 为什么用了反色后图片是这样的 太壮观了...这张图要好好收藏::27:: 图片处理过的吗？看起来不太。。。。。。。 [quote]原帖由 [i]那一片枫叶[/i] 于 2008-8-18 10:06 发表 [url=http://www.astronomy.com.cn/bbs/redirect.php?goto=findpost&pid=998286&ptid=95550][img]http://www.astronomy.com.cn/bbs/images/common/back.gif[/img][/url]
为什么用了反色后图片是这样的 [/quote]圖片是相機在不同位置曝光后拼接過的 的确如此。::33:: 这才叫做天文学的美！！！！
页:
[1]