Speaker
Description
The Observing Run 4 (O4) is the most recent period of data taking for the LIGO-Virgo-KAGRA (LVK) network of ground-based gravitational-wave (GW) interferometric detectors. Its first half, O4a, started in May 2023 and ended in January 2024 while its second part, O4b, is scheduled to start in April 2024 after a two-month commissioning break, and to end in January 2025. After an introduction summarizing the evolution of the different detectors since the end of Observing Run 3 (O3) in March 2020 and their current status, this talk will review the performance of the network and of the individual instruments since the beginning of O4. Some emphasis will be put on the improved alert system that allows astronomers to be notified in low latency when a promising transient GW candidate is identified. To conclude, the plans of the three collaborations for the coming years will be discussed.
| Alternate track | 12. Operation, Performance and Upgrade (incl. HL-LHC) of Present Detectors |
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| I read the instructions above | Yes |
