论文标题
改善从旋转三轴脉冲星发出的连续重力波的旋转极限
Improving the spin-down limits of the continuous gravitational waves emitted from rotating triaxial pulsars
论文作者
论文摘要
假定是旋转惯性轴的主矩后旋转三轴恒星的连续重力波应变的旋转极限取决于PULSAR的固有旋转频率导数的值，以及其他参数。为了获得更准确的固有自旋频率衍生值，必须通过更逼真的方法来估算有助于测得的自旋频率衍生值的动力效应。在这项工作中，我们计算了连续引力波菌株的旋转极限的提高值（假设脉冲星是三轴恒星，围绕着惯性轴的主要时刻旋转，对237张脉冲星的旋转旋转），该集有针对性地搜索ligo-virgo-virgo-kagagra（lvkra lvkra）的有针对性的搜索连续的重力搜索。我们使用了基于Python的公共软件包“ GaldynPsr”来计算内在的自旋频率衍生物的更真实的值，因此，我们获得了旋转限制的更真实的值。我们对内在自旋频率衍生物获得的现实值也可以为提高搜索搜索的搜索敏感性提供有价值的贡献，从而对来自已知脉冲星的连续重力波的搜索敏感性。
The spin-down limit of the continuous gravitational wave strain from pulsars assumed to be triaxial stars rotating about a principal moment of inertia axis depends upon the value of the intrinsic spin frequency derivative of the pulsar, among other parameters. In order to get more accurate intrinsic spin frequency derivative values, dynamical effects contributing to the measured spin frequency derivative values must be estimated via more realistic approaches. In this work, we calculated improved values for the spin-down limit of the continuous gravitational wave strain (assuming that pulsars are triaxial stars rotating about a principal moment of inertia axis) for a set of 237 pulsars for which a targeted search for continuous gravitational waves was recently carried out by the LIGO-Virgo-KAGRA (LVK) Collaboration. We used `GalDynPsr', a Python-based public package, to calculate more realistic values for the intrinsic spin frequency derivatives and, consequently, we get more realistic values of the spin-down limit. The realistic values that we obtain for the intrinsic spin frequency derivatives can also provide a valuable contribution to improving the sensitivity of searches for continuous gravitational waves from known pulsars.
