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科学家发现双星合一奇妙天文现象-生活英语学习
    
  Astronomers have long suspected the phenomenon of two stars merging together was possible.

  长期以来,天文学家们一直认为,双星合一的现象是极有可能存在的。

  But now, after years of searching, they have finally discovered the moment two closely orbiting stars became one.

  在多年的研究和寻找之后,科学家们终于发现了这一天文现象:两个轨道极为接近的行星最终合二为一。

  A study by Romuald Tylenda of the Nicolaus Copernicus Astronomical Centre in Torun, Poland, observed a pair or stars, named v1309 Scorpii.

  在位于波兰托伦的哥白尼天文台工作的科学家Romuald Tylenda观测到了一组名为天蝎座v1309的双星。

  The v1309 group was first found in 2008 when it erupted with a large solar flare. Several studies were undertaken but no one explanation was given for what happened.

  这组双星最早是在2008时被发现的,有迹象表明其与当时发生的太阳耀斑爆发有关。尽管有有学者进行了不少的研究,但却没能找到可以解释这一现象的答案。

  However Mr Tylenda then realised that an observatory in the Polish capital Warsaw had, by chance, been pointing its lens at the region for several years.

  然而,Tylenda却在偶然的机会中发现,原来在波兰首都华沙的天文台里的一个天文望远镜一直观测着这一区域。

  Spending hours going through the images taken since 2002, he and his colleagues found light variations that suggested v1309 was originally a contact binary star.

  这位科学家花费了大量的时间来查阅望远镜自2002年起所拍摄到的图像,他与同事发现,从v1309所发出的亮光的变化上来看,它原属于相接双星。

  A contact binary star is a just-touching pair of stars that circle each other over a small period of time - in this case 1.4 days.

  相接双星是一组在短时间内围绕着彼此轨道所运行的行星,v1309的情况则为1.4天。

  As time goes on, the stars' outer layers orbit each other hundreds of times and begin to form into one. The time the stars take to circle each other also reduces.

  随着时间的推移,在行星的外层空间之间相互运行了成百上千次后,他们开始形成为一体。同时,相互围绕运行的时间也逐渐减少。

  When this took place, Mr Tylenda and his team observed that the light from the star got brighter by a factor of 300 over just ten days.

  当这种情况发生时,Tylenda和他的团队观测到,这颗星的发亮程度在十天之内提高了300倍以上。

  V1309's final burst then occurred in August 2008 when the stars' cores finally became one and its brightness increased rapidly.

  在2008年八月,v1309发生了最后的裂变,两个星核也终于合二为一,其发光的亮度也随之急剧提升。

  Soon it became more than 30,000 times brighter than the sun as its energy dissipated outwards from the centre, before returning to its original brightness some months later.

  很快的,它的发光程度甚超过了太阳所发出光亮的30000倍,但随着内部能量的耗尽,数月之后,其又恢复到了之前的亮度。

  The explanations for these increases, according to Mr Tylenda and published in the journal Astronomy and Astrophysics, are as a result of the merger of a contact binary star.

  Tylenda将发光程度的陡增解释为了相接双星的合并过程。

  However scientists are unable to confirm his findings as they material given off when the two stars formed have largely blocked out the constellation.

  但科学家们却无法证实其发现,因为这组星宿的真实情况极大程度被在双星合并时所释放出的能量物质所遮蔽、

  Those involved have requested use of the Hubble Space Telescope to observe the stars, but unfortunately the material given off could block it out for several years to come.

  要观测这组星将动用到哈勃太空望远镜,但不幸的是,释放出的物质可能将其遮蔽长达数年之久。

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