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myIDname木蟲 (著名寫手)
人民大會堂首席清潔工
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[交流]
2013/3/15 NOW@SCIENCE之一:Atacama毫米/亞毫米陣列天文望遠鏡正式啟用 已有1人參與
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Science的news of week本周第一條,原文鏈接:http://www.sciencemag.org/content/339/6125/1258.1.full.pdf Atacama Desert, Chile 1 ALMA Unveiled Atacama毫米/亞毫米陣列天文望遠鏡正式啟用 The world’s biggest telescope held its inauguration ceremony this week on a high desert plateau in northern Chile. Nearly all the 66 antennas that make up the Atacama Large Millimeter/submillimeter Array (ALMA) are now receiving data at the telescope site 5000 meters above sea level. The telescope, built at a cost of more than $1.3 billion, will help astronomers study the cold universe at wavelengths that fall between microwaves and infrared light. Observing in that part of the electromagnetic spectrum will enable researchers to gain new insights into the origins of stars, galaxies, and planets. 世界上最大的天文望遠鏡的啟用儀式本周在智利北部的沙漠高原舉行。位于海拔5000米高度的Atacama毫米/亞毫米陣列天文望遠鏡由66塊天線組成,其中大部分已經開始接收信號。造價超過13億美元的Atacama天文望遠鏡將會幫助天文學家在介于微波段和紅外波段之間的范圍內研究寒冷的宇宙。通過觀察此頻段內的電磁頻譜能夠讓研究者以新的視角理解恒星,星系和行星的起源。 Funded by the United States, Japan, and Europe, ALMA began delivering science long before its 13 March inauguration ceremony, discovering that certain galaxies in the infant universe went through a phase of intense star birth more than 12 billion years ago. The finding, reported in Nature this week—and based on observations made by only 16 antennas—suggests that the universe became a fertile birthing ground for stars long before when was previously thought. 受美國,日本和歐洲資助的ALMA項目在本月13號啟動儀式之前的很長時間內就已經開始服役,并發(fā)現在120億年之前的宇宙誕生初期,某些星系經歷了一段恒星密集產生的時期。此次只利用16塊天線觀測結果的新發(fā)現本周發(fā)表在了Nature雜志,它表明宇宙成為恒星誕生溫床的時間要比我們之前所想的要早的多。 *************************************************************** Science的原文和本翻譯僅用于網友交流學習之用,若您有其它用途,比如商業(yè)用途等,請聯系Science雜志社了解原文使用權等相關事宜。謝謝! [ 來自科研家族 紅樓夢 ] |

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