Binary stars and other multiples.
双星系统和其它多星系统。
Binary stars, as their name suggests.
双星，正如它们的名字所表明的。
Binary stars, as their name suggests, are twin stars whose position in space affects each other.
双星，正如它们的名字所表明的，是两颗在空间位置上互相影响的星球。
Binary stars, as their name suggests, are twin stars whose position in space affects each other.
双星，顾名思义，就是彼此之间的空间位置相互影响的成双恒星。
Under certain conditions some singular points in the two dimensional state correspond to the binary stars.
在一定条件下，二维空间中的某些奇点相应于双星。
Based on the eclipses, the team calculates that the binary stars are just 20 percent and 69 percent the mass of our sun.
根据它们的日蚀，研究团队计算出，这两颗恒星只有太阳质量的20%和69%。
This requires even more detectors because these waves are even weaker than the waves from binary stars and neutron stars.
这将需要更多的探测器，因为与双星和中子星产生的引力波相比，这些引力波还要更弱。
Then by using the qualitative analysis theory of nonlinear equation, a nonlinear dynamical mechanism of formation of binary stars is obtained.
应用非线性方程的定性分析理论，获得双星演化的非线性动力学机制。
Equally importantly, Integral found evidence that a population of binary stars is also significantly off-centre, corresponding in extent to the cloud of antimatter.
同样重要的是，Integral发现双星的密度同样是明显偏心的迹象，在一定程度上与反物质云相关。
Ironically, this indirect evidence of a destructive planetary collision could also be the first indication that planetary systems can form around close binary stars.
更讽刺的是，这个毁灭性的行星对撞，很可能也是行星系统有可能在密近双星周围形成的首个间接证据。
So, in principle, you can determine for each one of those stars the velocity in orbit, the radius of their orbit and, of course, the period of the binary system.
所以从原则上来说，你们可以决定任何,恒星在轨道中的速度，轨道的半径以及，当然，二元体系的周期。
But how realistic is it to have a stable planet orbiting one (or both) of the stars in a binary system?
但是在双星系中，行星可以如此稳定同时绕双星或单星运行，这究竟现实与否？
It is estimated that one-third of the stars in the Milky Way are either binary or part of a multiple-star system.
据估计银河系中三分之一的恒星要么是双星要么是多恒星系统的一部分。
If you have a binary system whereby both stars are visible so you get the spectrum of both stars, then you see the Doppler shift of both stars in the spectrum.
若存在一个双星系统，两颗恒星均看不见，你能得到双星的光谱，然后在光谱中看到，双星的多普勒顿移。
In addition, spectroscopic observations with ground-based telescopes further reveal that one of the stars is actually a tight binary that is too compact to be resolved even by Hubble.
另外，地面望远镜的分光镜观察结果进一步揭示出它们其中的一颗恒星实际上是一对紧密的双星组成的，它们距离太近以至于哈勃望远镜不能区分出来。
So it's an extremely powerful tool in astronomy if you have a binary system, when the stars exactly do this, to determine all these quantities that you would like to know.
这是非常有用的手段,在天文学中，如果有，一个二元体系，若恒星真的这样运动，你就能得到你想要的,所有的数值。
Two such stars rotating around each other would form a binary system, getting closer and closer until they merged in a violent explosion.
两颗中子星互相绕行形成一个双星系统，它们越靠越近直到它们在爆炸中融合。
Sometimes, however, the system's overall brightness dipped even when the stars were not eclipsing each other-hinting at the presence of a third body orbiting the binary pair.
但有时，即使当系统在没有相互重叠时，这一对恒星的整体亮度也会明显下降——暗示着，还有第三个物体围绕着这一对恒星作轨道运转。
The binary star system consists of two white dwarfs—the burnt-out cores of sunlike stars.
该双星系统由两颗白矮星组成——所谓白矮星既是像太阳那样的恒星燃烧殆尽后遗留下来的核心。
But dimming can also be caused by an eclipsing binary, a pair of stars in an orbit that appears edge on as seen from Earth so that each star passes in front of the other once per cycle.
但但亮度变暗也可能是由食双星引起的，其从地球上看，两个星球出现在同一个轨道的边缘，因此每一次循环，每一个星球都会经过另一个的前方。
That's unfortunate since many stars are not solitary but members of a binary system.
考虑到许多恒星都是双星系统的成员，这实在是很不幸运。
A binary star is a double star, consisting of two stars turning round each other.
双星是两颗星，是由相互围绕旋转的两颗星组成。
A spectroscopic binary star, 245 light-years from Earth, one of the brightest stars in the sky and the brightest star in the constellation Virgo.
一种用分光镜观察的距地球245光年双星，是天空中最亮的恒星之一，也是处女座中最亮的星星。
It's a binary - two neutron stars orbiting each other.
这是一个双星系统，也就是两颗互相围绕对方运转的中子星。
This implies the existence of many other binary neutron stars that have yet to be found.
这暗示了还有更多未被发现的这种天体的存在。
This implies the existence of many other binary neutron stars that have yet to be found.
这暗示了还有更多未被发现的这种天体的存在。
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