螺旋星系M83的中心
[align=center][color=red][b]影像版权与提供:[/b] [/color][url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.mssl.ucl.ac.uk/~rs1/&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=ALkJrhjn4500e64aGGyM52ms-bNU34x7qw][color=red]Roberto Soria[/color][/url][color=red] ( [/color][url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.mssl.ucl.ac.uk/pages/&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=ALkJrhhE4eKeqe3or6Rb9YkM8_82JdZnRQ][color=red]MSSL[/color][/url][color=red] , [/color][url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.ucl.ac.uk/&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=ALkJrhgdGuuisDst1onII1ybtQMj950_1Q][color=red]UCL[/color][/url][color=red] ) et al., [/color][url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://hst.stsci.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=ALkJrhjN6XjQbV9OnHiD91wJ7fjhqhCz3Q][color=red]HST[/color][/url][color=red] , [/color][url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.esa.int/&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=ALkJrhgu8aUpwG6X5H0Zx1E19zlM1q79fQ][color=red]ESA[/color][/url][color=red] , [/color][url=http://203.208.37.104/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=ALkJrhh2WOEFuYhIPCADm4vnlr4pwmdZuw][color=red]NASA[/color][/url][/align][img]http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/image/0111/m83center_hst_big.jpg[/img]
[color=green][b]说明:[/b]螺旋星系M83的中心正发生什么事呢?从外表看来，应该所有的事都在发生吧?!在图片左上角的[/color][url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.seds.org/messier/m/m083.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=ALkJrhhaPA68QvTh1dPzJmN-nndkNjxQxg][color=green]M83[/color][/url][color=green]是个离我们[/color][url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.damtp.cam.ac.uk/user/gr/public/gal_milky.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=ALkJrhjM6viwwb-F_yNDwUYj_yDzaykIMw][color=green]银河系[/color][/url][color=green]最近的[/color][url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/spiral_galaxies.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=ALkJrhgIlTsJ_f8jbtHllOvgWSMZ8W4KrQ][color=green]螺旋星系[/color][/url][color=green] ，距离我们约一千五百万[/color][url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://csep10.phys.utk.edu/guidry/violence/lightspeed.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=ALkJrhiv5ELsr4ezg8qlUKDjOUvSOATQvg][color=green]光年[/color][/url][color=green]远，看起来相当正常。 [align=left]然而，在最新望远镜的放大下， [url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap991206.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=ALkJrhhoWBuWD0rP4Ua3vOcwS5CYZ_CdIg]M83[/url]的核心可是个精力充沛而热闹的区域呢！ [/align][align=left]由[url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap010806.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=ALkJrhi2m6bJKRgaKGTFuJnuFk8aUtG2og]哈伯太空望远镜[/url]拍摄的[url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.mssl.ucl.ac.uk/~rs1/M83.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=ALkJrhjsIv1Pod_gM1zq9gDupMG48c49zQ]这张影像[/url] ，有明亮的[url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap000924.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=ALkJrhjvESPaFsYL8B6jPfWAAD1DYPTUYg]初形成恒星[/url] ，也有灰暗[url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap990509.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=ALkJrhjmOYwOhf0-mXpAy9Kq5DTlAqnc2g]尘埃[/url]集成的巨大暗[url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap990919.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=ALkJrhicL0f4ZwydYgQmFZ2Y-PDUrtqvPg]纹[/url] 。 [/align][align=left]另一张由[url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://chandra.harvard.edu/about/axaf_mission.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=ALkJrhg4cXs9s0p4AKI1P5hfjIeYQxQ4MA]钱卓拉X射线观测站[/url]拍得的[url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.mssl.ucl.ac.uk/~rs1/M83.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=ALkJrhjsIv1Pod_gM1zq9gDupMG48c49zQ]同区域影像[/url] ，显示出此区域还富含温度极高的气体与[url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap010910.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=ALkJrhgpekxaacD0knftrxdyD-tENyGf-g]细小[/url]亮源。 [/color][/align][align=left][color=green]用地面上的[/color][url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod/ap000707.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=ALkJrhhmiIPTAMMyvqYxoDvvaZ_xUYbE1g][color=green]VLT望远镜[/color][/url][color=green]观测后得知，正中心处[/color][url=http://203.208.37.104/translate_c?hl=zh-CN&sl=zh-TW&u=http://adsabs.harvard.edu/cgi-bin/nph-bib_query%3Fbibcode%3D2000A%2526A...364L..47T&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=ALkJrhjZYbueK5cZ4jN96G_GS8XGePutNA][color=green]很可能有两个个别的核心[/color][/url][color=green] 。[/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 2008-8-25 08:16 编辑 [/i]]
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