Results of an all-sky high-frequency Einstein@Home search for continuous gravitational waves in LIGO's fifth science run
Results of an all-sky high-frequency Einstein@Home search for continuous gravitational waves in LIGO's fifth science run
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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
DOI：
10.1103/physrevd.94.064061
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发表时间：
2016
影响因子：
5
通讯作者：
X. Siemens
中科院分区：
文献类型：
--
作者：
Avneet Singh;M. Papa;H. Eggenstein;Sylvia J. Zhu;H. Pletsch;B. Allen;O. Bock;Bernd Maschenchalk;R. Prix;X. Siemens
我们展示了在LIGO第五次科学运行（S5）数据中对孤立致密物体的连续引力波进行高频全天搜索的结果，使用了Einstein@Home志愿者计算项目的计算能力。这是唯一一个专门的连续引力波搜索，探测S5数据的高频范围。我们没有发现明显的候选信号，因此我们对连续引力波应变振幅设置了90%置信度的上限。在搜索频率范围的低端，大约1250 Hz，最具约束的上限是$5.0\乘以10^{-24}$，而在高端，大约1500 Hz，它是$6.2\乘以10^{-24}$。基于这些上限，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100pc内，旋转周期在1.3到1.6毫秒之间的椭圆率高于大约$2.8\乘以10^{-7}$的物体。
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.
影响因子：
5
作者：
Aasi J
通讯作者：
Aasi J