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又見黑洞
2011/07/04 02:28:03瀏覽438|回應0|推薦6

繼吾好多年前一篇有黑洞的文章之後:  http://blog.udn.com/wktbp/800451 (黑洞)

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 這禮拜讀報又見黑洞. 星文學家對它又有了新的發現.  紐約時報導星文學家在三月二十八號偵測到很強的光, 原本以為是某某就快要解體的星球爆炸時所放出的光芒. 但是經許多專家的深入研究後, 覺得其中另藏玄機.

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最後終結的想法是:  一個星球被黑洞吸引, 形體逐漸縮減, 最後減縮成一個飛碟, 然後被吸入黑洞 (也像似黑洞吞噬了它). 這光芒是星球吸入時, 它的大氣被壓擠吐出的直射光. 有別於以往星球撞碰毀滅時所發出的強光 

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這在人類史上可是頭一次這樣的發現.  

這之於我來言實在是太玄奇了.  我們人類對自己所住的地球.到現在都還認識不清, 又怎麼能對此浩大的宇宙了解得清處? 可是我在想宇宙的奧秘一定也如地球的運行一樣有著它自己的規則. 在此真假不分, 是非模糊的世道, 人類若真能到領悟存於地球宇宙間的自然真理,  就定能化污為潔, 自然澄清許多的不明.

每個禮拜天的India Time報紙都會採訪知名人士對上帝存在的看法. 我在想若是問到我, 我該要怎麼說呢? 在看過黑洞的存在, 似乎宇宙中真地有一雙看不到的手在掌管它的運行與生滅.  那就是上帝 . 上帝就是真理啊 !!    

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Artist's impression of the initial stages of disruption of a star as it flies close to the central black hole of a distant galaxy. The star is tidally shredded, and begins to fall into the hole.

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Artist's impression of the end result of disruption of a star by a massive black hole. The star is disrupted into a disc around the star, which then falls into the hole, creating powerful jets. For this event we are looking down one of these jets.

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The event, which was observed on March 28, was originally thought to be a gamma ray burst from a collapsing star, but researchers suspected something more sinister was at play. Their findings appear in a pair of papers published online by the journal Science.

Traditional gamma ray bursts involve a deluge of high-energy photons bursting through space. They generally result from the explosion of a star or when two objects collide.

In this case the burst was unusually long, said Joshua Bloom, an associate professor of astronomy at Berkeley and the first author of one of the studies.

The burst also came from the center of a galaxy four billion light years away. Most galaxies are thought to have black holes at their center, a clue that tipped off Dr. Bloom and his colleagues.

“Astronomers are not so different from real estate agents — location, location, location,” he said. “This picture had emerged for me and I saw that this was a black hole swallowing up a star.”

The team used data gathered by the Swift Gamma Burst Mission, the Hubble Space Telescope and the Chandra X-ray Observatory to confirm their theory.

They also studied historical data to look for similar events involving the same black hole, but they found no other occurrences.

“This is a singular event in the history of mankind,” Dr. Bloom said. “This black hole was otherwise sitting dormant, a star got too close, its gas got ripped apart and in doing so some of it got spit up.”

There are still a number of unanswered questions that the researchers are exploring, like how large the star was in comparison to the sun, how close it got to the black hole and role of the hole’s spin in the event.

( 知識學習科學百科 )
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