字神帝國英語天地

 
 今日主題：Twin Birth Proposed for Colliding Black Holes That Produced Gravitational Waves  死亡之光

 洪欣老師推薦：托福聽力最好的課外教材：60-Second Science
 康康精選托福會考的主題，堅持每天精聽一定會進步的哦!!

 建議方法：
1. 先聽兩三遍 (不看文稿)
2. 再一句一句聽寫 (每句都要聽寫數遍，直到寫出85%以上的字)
3. 最後check文稿，看哪聽不出來，單字沒背過，還是發音不熟。
4. 堅持天天聽，就能每天進步哦。

 MP3音檔 (按右鍵可下載聽)：喜歡的同學，幫忙推或按讚哦~~
http://online1.tingclass.net/voaspe/…/20160412sa_science.mp3

 只有音檔怎夠，聽不懂地方，不用怕，康康幫你準備好中英文稿了：

 中英文稿：
The news last month that gravitational waves had been discovered made waves throughout the world of science. The finding, from the Laser Interferometer Gravitational-Wave Observatory, or LIGO, showed that extreme gravity can cause ripples in space time. In the case studied, the extreme gravity came from two colliding black holes. Now one scientist is suggesting an added wrinkle—that those two black holes might have originated in a single star.
上個月，引力波的發現在科學界引發了波瀾。從鐳射干涉引力波天文臺觀測到的結果顯示，極限條件下的引力波能夠造成時空波動。相關研究顯示，極限重力來自於兩個碰撞的黑洞。現在，有一個科學家正在建議增加一項背景條件——那就是這兩個相關的黑洞也許起源於同一顆恒星。

“The situation is similar to a pregnant woman that has twin babies in her belly.” Avi Loeb of the Harvard-Smithsonian Center for Astrophysics. He’s proposing the idea in a paper that’s been accepted for publication in the Astrophysical Journal Letters.
這好比一個懷著雙胞胎的孕婦。哈佛-史密松天體物理中心物理學家艾維•勞埃伯說到。他的上述觀點所在的文章將會發表在《天體物理通訊》雜誌。

Loeb became suspicious because just 0.4 seconds after LIGO spotted the gravitational waves, a space telescope called Fermi glimpsed a bright flash of gamma-ray light in the same area of the sky.
正式因為在LIGO觀測結果中顯示出的引力波之後那0.4秒鐘的資料，讓他產生了一些懷疑。當時Fermi的天文望遠鏡快速觀測到了當時天空中同一區域上一閃而過的伽瑪射線。

“Detecting such a signal is quite surprising from a collision of two black holes. What could be the source of a flash of light following a black hole merger?”
在兩個相撞的黑洞區域能觀測到這樣一個光信號著實讓人感到驚訝。是什麼物質能夠從黑洞中能發出的閃光?

Colliding black holes should not produce such light—but the death of a very massive star could.
正在碰撞的黑洞是不應產生光線的——但是一個正在死亡的即使是微弱品質的恒星確可以。

“My idea was that if the star is spinning very rapidly to start with, then as its core collapses it produces a bar that breaks into two clumps of matter, sort of like a dumbbell configuration. And these two clumps of matter orbit a common center, and they eventually collapse independently into two black holes.”
我的觀點就是這顆恒星開始是快速旋轉，然後，隨著它的品質中心的消亡，它變為一個條狀物然後被分成兩團，就像是一個啞鈴狀的結構。而這兩團品質是圍繞著同一個中心運動，最終它們獨自毀滅成為黑洞。

Of course, it’s possible that the Fermi telescope signal was a false alarm. So we’ll see if future gravitational wave detections are also accompanied by flashes of light—supporting the idea that twin black holes collided upon the collapse of a massive star.
當然，有可能Fermi望遠鏡觀測到的信號是個干擾的錯誤信號。所以我們會繼續觀察是否將來觀測到的引力波也會伴隨著同樣的一種微弱光信號——以便支援上述提出的觀點，就是一個大品質恒星的消亡過程中可能產生的兩個黑洞現象。