First searches for gravitational waves from r -modes of the Crab pulsar
First searches for gravitational waves from r -modes of the Crab pulsar
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DOI：
10.1103/physrevd.104.122008
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发表时间：
2021-01
影响因子：
5
通讯作者：
B. Rajbhandari;B. Owen;S. Caride;R. Inta
中科院分区：
文献类型：
--
作者：
B. Rajbhandari;B. Owen;S. Caride;R. Inta
我们提出了从螃蟹脉冲星的R模型的重力搜索，相干和分别整合了使用F统计的前两个观测式高级LIGO的三个伸展的数据。在搜索的频率和衍生物中，脉冲星的频率和衍生物是基于对脉冲星的旋转参数的无线电测量。物理学D 100，064013（2019年）。对于第二次运行的第一个延伸，第二次跑步的第二次延伸是1.1×10-25。他们这样做的是在放大器或两个数量级的亮度级数量级。
We present the first searches for gravitational waves from r-modes of the Crab pulsar, coherently and separately integrating data from three stretches of the first two observing runs of Advanced LIGO using the F-statistic. The second run was divided in two by a glitch of the pulsar roughly halfway through. The frequencies and derivatives searched were based on radio measurements of the pulsar’s spin-down parameters as described in Caride et al., Phys. Rev. D 100, 064013 (2019). We did not find any evidence of gravitational waves. Our best 90% confidence upper limits on gravitational wave intrinsic strain were 1.5× 10−25 for the first run, 1.3× 10−25 for the first stretch of the second run, and 1.1×10−25 for the second stretch of the second run. These are the first upper limits on gravitational waves from r-modes of a known pulsar to beat its spin-down limit, and they do so by more than an order of magnitude in amplitude or two orders of magnitude in luminosity.