Toward Early-Warning Detection of Gravitational Waves from Compact Binary Coalescence

长短期记忆网络用于引力波早期预警探测

Long Short-Term Memory for Early Warning Detection of Gravitational Waves

本文提出基于长短期记忆网络的深度学习概念验证方法，用于双黑洞并合事件的并合前早期预警，在灵敏度和预警能力上与匹配滤波相当，可提前四秒发出警报。

Supernova Early Warning in Daya Bay Reactor Neutrino Experiment

Providing an early warning of a galactic supernova using neutrino signals is of importance in studying both supernova dynamics and neutrino physics. The Daya Bay reactor neutrino experiment, with a unique feature of multiple liquid scintillator detectors separated in space, is sensitive to the full energy spectrum of supernova burst electron-antineutrinos. By deploying 8 Antineutrino Detectors (ADs) in three different experimental halls, we obtain a more powerful and prompt rejection of muon spallation background than single-detector experiments. A dedicated supernova online trigger system emb…

Exploring the sky localization and early warning capabilities of third generation gravitational wave detectors in three-detector network configurations

This work characterises the sky localization and early warning performance of networks of third generation gravitational wave detectors, consisting of different combinations of detectors with either the Einstein Telescope or Cosmic Explorer configuration in sites in North America, Europe and Australia. Using a Fisher matrix method which includes the effect of earth rotation, we estimate the sky localization uncertainty for $1.4\text{M}\odot$-$1.4\text{M}\odot$ binary neutron star mergers at distances $40\text{Mpc}$, $200\text{Mpc}$, $400\text{Mpc}$, $800\text{Mpc}$, $1600\text{Mpc}$, and an as…

Real-time earthquake warning for astronomical observatories

Early earthquake warning is a rapidly developing capability that has significant ramifications for many fields, including astronomical observatories. In this work, we describe the susceptibility of astronomical facilities to seismic events, including large telescopes as well as second-generation ground-based gravitational-wave interferometers. We describe the potential warning times for observatories from current seismic networks and propose locations for future seismometers to maximize warning times.

利用引力波预警为成像大气切伦科夫望远镜预指向中子星并合

Using gravitational wave early warning to pre-point neutron star mergers with Imaging Atmospheric Cherenkov telescopes

本文提出利用LVK引力波预警在并合前数十秒预指向成像大气切伦科夫望远镜，以探测中子星并合瞬时辐射的TeV成分，并分析了所需的技术改进与协同挑战。