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【我翻第4期】Stars Do Dance of Possible Death

2011/8/26镜像同步7 回复

终于开学了，我翻归来~~不过这篇文章貌似有点而悲壮。。。额。。。。规则大家应该都比较熟悉了吧~~ 翻译下面的小文发送到邮箱13919667707@139.com （发我邮箱哦，我站内信箱满了~~~）邮件题目格式：【我翻第4期】id：selffractal 本期截止时间为9月10日教师节~~~ 翠花，上正文~~~~ Stars Do Dance of Possible Death You could think of it as the real dancing with the stars. Two white dwarf stars have been found twirling around each other to make a complete orbit in less than every 13 minutes. And they provide a chance to test ideas about general relativity and gravitational waves. The system is described in a paper accepted by the Astrophysical Journal Letters. [Warren Brown et al., "A 12 minute Orbital Period Detached White Dwarf Eclipsing Binary"] One of the stars is about the size of Earth, but has more than half the mass of the sun. A penny as dense as the star would weigh half a ton here. The other star is about 60 times our size and has about half the mass of its companion. Astronomers estimate that the partners will collide in about 900,000 years. At that time, they could form a stable binary star, or merge into a single, rapidly spinning white dwarf, or go supernova. In the meantime, they provide a place to look for gravitational waves. Because they’re not exchanging mass now, gravitational waves should account for the loss of energy that brings them closer every year. —Steve Mirsky

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