Search for High-Energy Neutrinos from GW170817 with the Baikal-GVD Neutrino Telescope

摘要

The Advanced Laser Interferometer Gravitational-Wave Observatory and Advanced Virgo observatories recently discovered gravitational waves from a binary neutron star inspiral. A short gamma-ray burst that followed the merger of this binary was also recorded by Fermi gamma-ray burst monitor and International Gamma-Ray Astrophysics Laboratory, indicating particle acceleration by the source. The precise location of the event was determined by optical detections of emission following the merger. We searched for high-energy neutrinos from the merger in the energy range of 1 TeV-100 PeV using the Baikal Gigaton Volume Detector. No neutrinos directionally coincident with the source were detected within +/- 500 s around the merger time, as well as during a 14-day period after the gravitational wave detection. We derived 90% C.L. upper limits on the neutrino fluence from GW170817 during a +/- 500 s window centered on the gravitational wave trigger time, and a 14-day window following the gravitational wave signal under the assumption of an E-2 neutrino energy spectrum.