| File(s) | VIR-0220C-22.pdf (9.3 MB) |
|---|---|
| Document type | Publication |
| Abstract | We report the results of the first joint observation of the KAGRA detector with GEO600. KAGRA is an underground gravitational-wave detector consisting of a laser interferometer with three-kilometer arms, and located in Kamioka, Gifu, Japan. GEO600 is a British–German laser interferometer with 600m arms, and located near Hannover, Germany. GEO600 and KAGRA performed a joint observing run from April 7 to 20, 2020. We present the results of the joint analysis of the GEO–KAGRA data for transient gravitational-wave signals, including the coalescence of neutron-star binaries and generic unmodeled transients. We also perform dedicated searches for binary coalescence signals and generic transients associated with gammaray burst events observed during the joint run. No gravitational-wave events were identified. We evaluate the minimum detectable amplitude for various types of transient signals and the spacetime volume to which the network is sensitive to binary neutron-star coalescences. We also place lower limits on the distances to the gamma-ray bursts analysed based on the nondetection of an associated gravitational-wave signal for several signal models, including binary coalescences. These analyses demonstrate the feasibility and utility of KAGRA as a member of the global gravitational-wave detector network. |
| Author(s) | The LIGO Scientific Collaboration, the Virgo Collaboration, and the KAGRA Collaboration |
| Code | VIR-0220C-22 |
| Code issue time/date | 10:27, Wednesday the 9th of March, 2022 |
| Referral URL | https://tds.virgo-gw.eu/ql/?c=17866 COPIED |
| Series | Published documents Papers, proceedings |
| Annex files | |
| Other releases | VIR-0220A-22 VIR-0220B-22 VIR-0220D-22 LATEST RELEASE |