科学美国人60秒:银河也许是最远的可见天体
日期:2012-11-26 16:48

(单词翻译:单击)

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It was just a tiny galaxy, minding its own business shortly after the big bang. But a chance alignment has brought this ancient galaxy into view. It just might be the most distant object that astronomers have ever seen.
银河原本很渺小,大爆炸后便开始迅速扩张=byOBRHau(iFu@!Qux。当这个古老的星系与背景星系排成一线时,银河便清晰可见了3G#hpq_9DuzlX^H。它也许是天文学家观测到的最远的天体Q42#*G#j.J[%!Tb^gM

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A new study using the Hubble and Spitzer space telescopes has tentatively identified the galaxy, so far away that its light has traveled for 13.3 billion years to reach us.
一项新的研究利用哈勃望远镜个和斯皮策太空望远镜来观测,初步确认了银河,它是如此遥远,以至于它发出的光要经过133亿年才能到达地球@!kCyN28WqS_w%(ONse
The galaxy itself is no shining cosmic beacon. In fact it's only about one one-hundredth the size of the Milky Way. So how did the scopes see it? Chalk it up to a cosmic conjunction.
银河本身就像一个不发光的宇宙灯塔=H5F@D_dcBZ@XQB@R。实际上它只有银河系的百分之一iUECcG+UG]&e。那么如何用望眼镜看见它6b1H,,n#C#i_,]M9P%RC。这要归结为宇宙合点po98oMlqpf
Some 5.6 billion years ago, its light passed a giant cluster of galaxies. The gravitational pull of the galaxy cluster acted like a lens. As a result, the scopes saw the tiny, distant galaxy in distorted—but greatly magnified—form. The study will appear in The Astrophysical Journal.
大约56亿年前,银河发出的光经过了一个巨大的星系团_46kTH=lMAYR;4O。在万有引力的作用下,星系团就相当于晶状体nn](0#kH=+Q2yYE。因此,望远镜就看见了微小的,遥远的银河,虽然已经变形,但被极度放大了~jbf,FHtLe.jk&,cJ]。这项研究发表在《天体物理学杂志》上fXA.J]KYrXXC(WZz=q
In the cosmologist's preferred distance measure of redshift, which gauges how much light has been stretched in an expanding universe, the galaxy lies at a redshift of about 10.7. The previous record holder was found at about redshift 10. Literally far out.
宇宙学家更倾向于红移的距离测量,计算宇宙的膨胀来判断光波被拉长了多少uq1C!Jx&gS@*-[(UICn。这个星系的红移量大约是10.7IB^#^|v,|@eG0F。之前的记录大约是10hRb4I9((!W。确实相距甚远D(bZ17Glqw

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重点单词
  • beaconn. 烟火,灯塔
  • identifiedadj. 被识别的;经鉴定的;被认同者 v. 鉴定(id
  • lensn. 镜头,透镜,(眼球的)水晶体 vt. 给…摄
  • magnifiedadj. 放大的 v. 放大;夸张(magnify的过去
  • measuren. 措施,办法,量度,尺寸 v. 测量,量
  • universen. 宇宙,万物,世界
  • cosmicadj. 宇宙的,广大无边的,无限的
  • distortedadj. 歪曲的;受到曲解的 v. 扭曲(distort
  • previousadj. 在 ... 之前,先,前,以前的
  • expanding扩展的,扩充的