An offline search for a neutrino counterpart to gravitational-wave (GW) events detected during the second observation run (O2) of Advanced-LIGO and Advanced-Virgo performed with ANTARES data is presented. In addition to the search for long tracks induced by \(\nu _\mu \) (\({\overline{\nu }}_{\mu }\)) charged current interactions, a search for showering events induced by interactions of neutrinos of any flavour is conducted. The severe spatial and time coincidence provided by the gravitational-wave alert allows regions above the detector horizon to be probed, extending the ANTARES sensitivity over the entire sky. The results of this all-neutrino-flavour and all-sky time dependent analysis are presented. The search for prompt neutrino emission within ±500 s around the time of six GW events yields no neutrino counterparts. Upper limits on the neutrino spectral fluence and constraints on the isotropic energy radiated via high-energy neutrinos (from a few TeV to a few tens of PeV) are set for each GW event analysed.

中文翻译：

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使用ANTARES望远镜搜索在O2运行期间LIGO和处女座检测到的引力波事件的中微子对应物

提出了使用ANTARES数据对在Advanced-LIGO和Advanced-Virgo的第二次观测运行（O2）期间检测到的中微子对应的重力波（GW）事件进行离线搜索的方法。除了搜索由\（\ nu _ \ mu \）（\（{\ overline {\ nu}} _ {\ mu} \）在带电的电流相互作用下，寻找由任何风味的中微子的相互作用引起的喷淋事件。重力波警报提供的严格的空间和时间重合性允许探测到探测器地平线以上的区域，从而将ANTARES灵敏度扩展到整个天空。介绍了这种全中微子风味和全天候时间依赖性分析的结果。在六个GW事件发生之后的±500 s内寻找中微子的迅速发射，不会产生任何中微子对应物。为每个分析的GW事件设置了中微子谱通量的上限和对通过高能中微子辐射的各向同性能量（从几TeV到几十PeV）的约束。