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arXiv 1607.00745gr-qcastro-ph.HEastro-ph.IM
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LIGO第五次科学运行中全天空高频Einstein@Home搜索连续引力波的结果

Results of an all-sky high-frequency Einstein@Home search for continuous gravitational waves in LIGO's fifth science run

Avneet Singh, Maria Alessandra Papa, Heinz-Bernd Eggenstein, Sylvia Zhu, Holger Pletsch, Bruce Allen, Oliver Bock, Bernd Maschenchalk, Reinhard Prix, Xavier Siemens

摘要:

我们提出了一个高频全天空搜索的连续引力波从孤立的紧凑的物体在LIGO的第五次科学运行(S5)的数据,使用的计算能力的爱因斯坦@家志愿者计算项目。这是唯一一次专门的连续引力波搜索,在S5数据上探测这种高频范围。我们没有发现显著的候选信号,因此我们对连续引力波应变振幅设置了90%置信水平的上限。在搜索频率范围的较低端,大约1250 Hz,最受约束的上限是$5.0\times 10^{-24}$,而在较高端,大约1500 Hz,它是$6.2\times 10^{-24}$。根据这些上限,并假设主转动惯量的基准值为$10^{38}$ kg $\,$ m $^2$,我们可以排除在地球100 pc范围内,自转周期在1.3和1.6毫秒之间的椭圆率高于大约$2.8\times10^{-7}$的天体。

英文摘要:

We present results of a high-frequency all-sky search for continuous gravitational waves from isolated compact objects in LIGO's 5th Science Run (S5) data, using the computing power of the Einstein@Home volunteer computing project. This is the only dedicated continuous gravitational wave search that probes this high frequency range on S5 data. We find no significant candidate signal, so we set 90%-confidence level upper-limits on continuous gravitational wave strain amplitudes. At the lower end of the search frequency range, around 1250 Hz, the most constraining upper-limit is $5.0\times 10^{-24}$, while at the higher end, around 1500 Hz, it is $6.2\times 10^{-24}$. Based on these upper-limits, and assuming a fiducial value of the principal moment of inertia of $10^{38}$kg$\,$m$^2$, we can exclude objects with ellipticities higher than roughly $2.8\times10^{-7}$ within 100 pc of Earth with rotation periods between 1.3 and 1.6 milliseconds.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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