Search for gravitational waves associated with the August 2006 timing glitch of the Vela pulsar
Search for gravitational waves associated with the August 2006 timing glitch of the Vela pulsar
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搜索与 2006 年 8 月船帆脉冲星计时故障相关的引力波
DOI：
10.1103/physrevd.83.042001
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发表时间：
2011
影响因子：
5
通讯作者：
Abadie J
中科院分区：
文献类型：
--
作者：
Abadie J
脉冲星定时故障的物理机制被认为是激发了它们的母中子星星中的准正常模式振荡，这种振荡耦合到引力波发射。2006年8月，在船帆座脉冲星PSR B 0833 -45的无线电发射中观察到一个定时故障。在故障发生时，激光干涉引力波天文台（LIGO）的两个汉福德引力波探测器正在运行，并作为第五次LIGO科学运行（S5）的一部分获取数据。我们提出了第一个直接搜索的引力波发射与振荡的基本四极模激发脉冲星定时毛刺。没有发现引力波探测的候选者，我们把贝叶斯90%置信上限的峰值内禀应变振幅的引力波衰荡信号，这取决于球谐模式被激发。相应的能量上限范围为。
The physical mechanisms responsible for pulsar timing glitches are thought to excite quasinormal mode oscillations in their parent neutron star that couple to gravitational-wave emission. In August 2006, a timing glitch was observed in the radio emission of PSR B0833-45, the Vela pulsar. At the time of the glitch, the two colocated Hanford gravitational-wave detectors of the Laser Interferometer Gravitational-wave observatory (LIGO) were operational and taking data as part of the fifth LIGO science run (S5). We present the first direct search for the gravitational-wave emission associated with oscillations of the fundamental quadrupole mode excited by a pulsar timing glitch. No gravitational-wave detection candidate was found. We place Bayesian 90% confidence upper limits oftoon the peak intrinsic strain amplitude of gravitational-wave ring-down signals, depending on which spherical harmonic mode is excited. The corresponding range of energy upper limits isto.