论文标题
在接下来的十年预警检测二进制中子星的现实观察场景中
Realistic observing scenarios for the next decade of early warning detection of binary neutron stars
论文作者
论文摘要
我们描述了现实的观察场景，用于预警检测二进制中子星的合并，而当前的地面重力波检测器是这些方法设计敏感性。使用Fisher分析，我们估计高级LIGO和高级处女座将在合并第四次观察跑步之前检测到一个信号，前提是它们保持了70 \％的占空比。 60 \％的所有观测值和8％的合并前20秒的可检测到的百分比将定位为$ \ lyssim 100 \ thinspace \ thinspace \ mathrm {deg}^2 $。如果Kagra能够达到25 MPC的视野，这些前景将增加到$ \ lyssim 2 $早期检测，其中70％的BN属于$ \ Lessim 100 \ Thinspace \ Thinspace \ thinspace \ Mathrm {deg}^2 $。随着AHKLV网络在接下来的$ \ sim10 $年内接近设计敏感性时，我们预计在合并之前，最多可达到1（14）次检测100（10）秒。尽管将检测器添加到HLV网络中会影响检测率在$ \ lyssim 50 \％$级别，但它可以提高本地化前景并提高紧凑型二进制验证的完整性。鉴于敏感性，参与探测器和职责周期的不确定性，我们考虑103未来的探测器配置，因此电磁观察者可以针对其首选模型量身定制制备。
We describe realistic observing scenarios for early warning detection of binary neutron star mergers with the current generation of ground-based gravitational-wave detectors as these approach design sensitivity. Using Fisher analysis, we estimate that Advanced LIGO and Advanced Virgo will detect one signal before merger in their fourth observing run provided they maintain a 70\% duty cycle. 60\% of all observations and 8\% of those detectable 20 seconds before merger will be localized to $\lesssim 100 \thinspace \mathrm{deg}^2$. If KAGRA is able to achieve a 25 Mpc horizon, these prospects increase to $\lesssim 2$ early detections with 70\% of all BNS localized to $\lesssim 100 \thinspace \mathrm{deg}^2$ by merger. As the AHKLV network approaches design sensitivity over the next $\sim10$ years, we expect up to 1 (14) detections made 100 (10) seconds before merger. Although adding detectors to the HLV network impacts the detection rate at $\lesssim 50\%$ level, it improves localization prospects and increases the completeness of compact binary surveys. Given uncertainties in sensitivities, participating detectors, and duty cycles, we consider 103 future detector configurations so electromagnetic observers can tailor preparations towards their preferred models.
