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2012-07-24 泰坦上的南极涡旋
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dailyas...@gmail.com
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Jul 24, 2012, 1:01:06 AM
7/24/12
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泰坦(土卫六)的南极上空发生甚么事情呢?这个朦胧涡旋正在形成,可是却没人知道他形成的原因。上个月卡西尼号太空船飞越这个拥有异常大气气壳的土星卫星时,拍下涡旋影像,就在这自然彩色影像里的浅色特徵处。卡西尼号太空船会发现这个南方涡旋,是因为最近刚从土星环与卫星之间的盘面抛射出去。目前正努力的累积造成这神秘特徵的线索,包含泰坦大气中央沉降边缘上升的气流特徵。然而,泰坦南半球正缓慢地进入冬季,未来几年都将沉浸于黑暗之中,如果这个涡旋也能在这样的环境里生存下来的话。
内容提供:
http://apod.nasa.gov/apod/ap120724.html
中文翻译:成功大学物理学系 苏汉宗,陈昭敏 等
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