论文标题
重力波合并预测：与地面观测值的紧凑型二进制合并的早期检测和定位的场景
Gravitational-wave Merger Forecasting: Scenarios for the early detection and localization of compact-binary mergers with ground based observatories
论文作者
论文摘要
我们在未来10年内使用重力波介绍了早期（合并前）检测和紧凑型二元合并的定位。预警可以直接观察中子星合并的迅速和早期电磁发射。我们在其“设计”敏感性（2021-2022），计划的“ A+”升级（2024-2026）以及设想的“ Voyager”概念（2020年代末）中检查了基于地面检测器的功能。我们发现，对于二进制中子星的信托率，$ 1000〜 \ mathrm {gpc}^{ - 3} { - 3} \ Mathrm {yr}^{ - 1} $，设计，A+和Voyager ERA网络可以提供18、54和100 $ $每年的$ $ $ $ $ $ $ $，$ $ $ $ $ $ $ $ $ $ $ $ $ $ $^$ $^$ $^$ $^以$ 90 \％$可信的水平。以相同的速度，A+和Voyager ERA网络将能够分别为具有$ <$ 10度$^2 $本地化区域的来源提供9和43秒的警告。我们将理想化的搜索敏感性与Pycbc实时搜索所实现的敏感性进行了比较，调整了预测前检测。重力波浪社区将准备好产生合并前警报。我们的结果激发了具有广泛视野，自动化和快速起飞的能力与重力波网络同时观察的能力的观测值的操作。
We present the prospects for the early (pre-merger) detection and localization of compact-binary coalescences using gravitational waves over the next 10 years. Early warning can enable the direct observation of the prompt and early electromagnetic emission of a neutron star merger. We examine the capabilities of the ground based detectors at their "Design" sensitivity (2021-2022), the planned "A+" upgrade (2024-2026), and the envisioned "Voyager" concept (late 2020's). We find that for a fiducial rate of binary neutron star mergers of $1000 ~\mathrm{Gpc}^{-3} \mathrm{yr}^{-1}$, the Design, A+, and Voyager era networks can provide 18, 54, and 195s of warning for one source per year of observing, respectively, with a sky localization area $<$100 deg$^2$ at a $90\%$ credible level. At the same rate, the A+ and Voyager era networks will be able to provide 9 and 43s of warning, respectively, for a source with $<$10 deg$^2$ localization area. We compare the idealized search sensitivity to that achieved by the PyCBC Live search tuned for pre-merger detection. The gravitational-wave community will be prepared to produce pre-merger alerts. Our results motivate the operation of observatories with wide fields-of-view, automation, and the capability for fast slewing to observe simultaneously with the gravitational-wave network.
