本帖最后由 gohomeman1 于 2009-3-18 20:35 编辑
这是Hubble官网上的文字
2008.4.24
Hubble Interacting Galaxy NGC 6240
ABOUT THIS IMAGE:NGC6240 is a peculiar, butterfly- or lobster-shaped galaxy consisting oftwo smaller merging galaxies. It lies in the constellation ofOphiuchus, the Serpent Holder, some 400 million light-years away.Observations with NASA s Chandra X-ray Observatory have disclosed twogiant black holes, about 3,000 light-years apart, which will drifttoward one another and eventually merge together into a larger blackhole. The merging process, which began about 30 million years ago,triggered dramatic star formation and sparked numerous supernovaexplosions. The merger will be complete in some tens to hundreds ofmillions of years.
This image is part of a large collection of 59 images of merginggalaxies taken by the Hubble Space Telescope and released on theoccasion of its 18th anniversary on 24th April 2008.
Object Names: NGC 6240, VV 617
NGC 6240是一个罕见的由两个较小合并中的星系构成的犹如蝴蝶或龙虾般的天体。位于“持蛇者”蛇夫座,相当于4亿光年远处。NASA“钱德拉”射线天文台的观测揭示了两个相距3000光年的巨大黑洞正在朝彼此靠近,最终将合并成为一个更大的黑洞。合并的过程开始于约3千万年前,触发了大量恒星诞生以及超新星爆发。合并将在大约1千万至1亿年间完成。
PS:此段翻译不是我写的,是原先那篇文章中的翻译。 |