引力波
- gravitational wave
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几种引力波天线材料低温下的Q值研究
Research to Q Value of Some Materials of Gravitational Wave Antenna in Low Temperature
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介绍了脉冲星计时噪声的估计方法,通过计算得出当前毫秒脉冲星的计时噪声水平影响引力波背景辐射对TOA摄动的发现。
The detection of TOA perturbations , which caused by the gravitational wave background , is affected by the levels of the millisecond pulsar timing noise .
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引力波天线Q值测试仪
Metering Instrument of Quality Factor Q of Gravitational Waves Antenna
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给出初始扰动压力p(r;0)作为碰撞的初始条件,用流体力学方程组求解了彗木相撞中的惯性引力波。
We take an initial impulsive pressure p ( r ; 0 ) as the initial condition and use fluid dynamics equations to solve the inertia-gravity waves .
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中国专家说,与国外那些适合观测相对稳定黑洞的X射线卫星相比,中国的卫星更适合观测活跃的黑洞或中子星。这次观测的另外一个主要任务是找到与引力波相关的电磁信号。
Chinese experts say foreign X-ray satellites which mostly observing relatively calm black holes , the Chinese telescope observing angry black holes and neutron stars .
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在LISA上面,这些轨道运动所发出的兆赫兹范围的引力波可以被探测到。
Here , the gravitational waves emitted from the orbital motion in the mHz range would be detectable .
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DeSitter弯曲时空中遗迹引力波及其能量动量赝张量的表述和正定性问题
Relic Gravitational Wave and Positive Definite and Expression of Their Energy-Momentum Pseudo-Tensor in De sitter Background Spacetime of the Curve
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上周四,科学家们宣布观测到了引力波存在的直接证据,从而证实了阿尔伯特·爱因斯坦(AlbertEinstein)的一个最令人难以置信的理论。
With the announcement Thursday that scientists had discovered direct evidence of gravitational waves , one of Albert Einstein 's wildest theories was validated .
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集中质量音叉式引力波天线与Vela星引力辐射探测的探讨
Design of a tuning fork antenna with collective mass for detecting gravitational radiation from Vela pulsar
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Hawking辐射和似正规模与引力波的探测有着密切关系,前者为后者提供理论指导,后者为前者提供实验论证。
Hawking radiation and quasi-normal modes are closely related to the detection of gravitational waves . The former provides theoretical bases for the latter , which will provide experimental evidences for the former .
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同时我们还讨论了QCD相变和正负电子对湮灭对引力波的影响,发现这两种效应会使引力波谱的幅度下降明显。
Then the influences of the QCD phase transition and e + e ~ annihilation effect are considered . These two progresses are able to decrease the amplitude of RGWs obviously .
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引力波探测器让激光在长两公里、摆成L形的干涉臂上来回反射,从而对这种微小收缩或扩张进行测量。
Gravitational-wave detectors use lasers bouncing off mirrors in two-kilometer-long arms at right angles , like an L , to measure such minuscule contractions or stretches .
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天文学家在2016年宣布,LIGO阵列检测到了两个黑洞碰撞所释放出来的引力波,证实了爱因斯坦广义相对论的关键部分。
Astronomers confirmed a key part of Einstein 's general theory of relativity in 2016 when they announced that the LIGO array had detected gravitational waves released by the collision of two black holes .
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我们还采用了两种残余引力波作为源,即考虑中微子自由流效应的和没有考虑此效应的引力波,讨论了中微子对CMB谱的衰减作用,以及对谱线峰值的位置产生的影响。
Two kinds of RGWs sources are used here , one with neutrino free-streaming effect and another without it . It is found that the neutrino free-streaming has the effect of damping the amplitudes and shifting the position of the peaks of CMB spectra .
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科学家们相信有些脉冲星不是完美的球形,且如果是这样,它们应该发射出特定的引力波,LIGO和GEO600将会在几个月后开始探测这些引力波。
Scientists believe that some pulsars may not be perfectly spherical , and if so , they should emit characteristic gravitational waves , which LIGO and GEO600 will begin to detect in coming months .
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目前世界上许多台引力波探测器,其中两台——美国的LIGO,在路易斯安那州和华盛顿有两个观察站;以及欧洲的VIRGO,位于意大利——刚刚对灵敏性进行了升级,它们都将在2015年开始寻找引力波。
Two of the several gravitational-wave detectors currently built - the American LIGO , with two observatories in Louisiana and Washington , and the European VIRGO in Italy - have just been upgraded to boost their sensitivity , and both will start searching in 2015 .
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用Jordan-kaluza-klein方法构造引力波严格解
Construction of gravitational wave solutions following the jordan kaluza klein approach
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引力波的基本场方程与假性能动张量
Fundamental field equation and artificial energy momentum tensor for gravitational wave
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引力波的平行射线矢量场的确定
Determination of the Vector Field With Parallel Rays for Gravitational Waves
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在一维或二维空间,引力波无法存在。
Gravitational waves can 't exist in one or two-dimensional space .
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中山大学常温共振型引力波探测器
Resonant Gravitational Wave Detector Operating in Room Temperature in Zhongshan University
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只有大尺度的事件发出的引力波我们才能探测到。
Only large-scale events make gravitational waves that we can detect .
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高斯束谐振系统对引力波频率的选择效应
Frequency Selective Effect of a Gaussian Resonance System to Gravitational Waves
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引力波传播速度求法的研究
Study on Methods of Seeking the Velocity of Gravitational Field Wave
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这就是为什么引力波的探测如此困难的原因。
That is why gravitational waves are so difficult to detect !
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柱面引力波和引力波孤子的能量动量赝张量
The Energy-Momentum Pseudo-tensor of the Cylindrical Gravitational Waves and Gravitational Solitons
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粒子绕黑洞运动时的引力波辐射
Gravitational Radiation from a Particle Moving in the Field of Blackhole
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引力波的电磁响应:经典图象及其量子对偶性
Electromagnetic Response to Gravitational Wave : Classical Description and Its Quantum Duality
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杨振宁场引力波的极化
Polarization of the gravitational waves of yang 's gravitational field
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谐和条件下的对角度规引力波方程
Gravitational Wave Equations under Diagonal Metric and Harmonic Coordinate Conditions