论文标题
预训练紧凑型二进制合并与第三代重力波检测器的预警
Early warning of precessing compact binary merger with third-generation gravitational-wave detectors
论文作者
论文摘要
重力波事件的快速定位对于多理想者观察的成功很重要。即将到来的重力波检测器的改进和构造将使甚至在合并之前探测和定位紧凑型二进制合并事件，这称为预警。通过考虑因地球旋转而引起的重力波信号振幅的调节以及由紧凑物体未经对准的旋转引起的二元轨道平面的进攻，可以改善预警的性能。在本文中，考虑到轨道进动，我们第一次定量地估算预警的定位精度。我们发现，$ z = 0.1 $的中子星空孔二进制通常可以定位为$ 100 \，\ mathrm {deg}^2 $和$ 10 \，\ Mathrm {deg^2} $，$ 12 $ - $ 15 $ - $ 15 \，$ 15 \，\ MATHRM {MANTER} $和50美元$ - $ 300 $}没有进步效应就无法实现。
Rapid localization of gravitational-wave events is important for the success of the multi-messenger observations. The forthcoming improvements and constructions of gravitational-wave detectors will enable detecting and localizing compact-binary coalescence events even before mergers, which is called early warning. The performance of early warning can be improved by considering modulation of gravitational wave signal amplitude due to the Earth rotation and the precession of a binary orbital plane caused by the misaligned spins of compact objects. In this paper, for the first time we estimate localization precision in the early warning quantitatively, taking into account an orbital precession. We find that a neutron star-black hole binary at $z=0.1$ can typically be localized to $100\,\mathrm{deg}^2$ and $10\,\mathrm{deg^2}$ at the time of $12$ -- $15 \,\mathrm{minutes}$ and $50$ -- $300\,\mathrm{seconds}$ before merger, respectively, which cannot be achieved without the precession effect.
