Virgo does not confirm the selected 200 Hz peak 7.8 seconds before GW170814 in a five-filter test
We test Virgo strain at the strongest H1/L1 pulse in a prior search from 10 to 2 seconds before GW170814. The selected peak is at 200 Hz, about 7.8 seconds before merger. We repeat the full H1/L1 selection and Virgo follow-up in 229 control windows. Virgo and joint ranks are 0.409 and 0.443 for two noise-power estimates. Neither joint score passes the 99 percent control threshold. No new signal is found. Pulses with H1/L1 hrss 1e-22 sqrt(s) pass the H1/L1 threshold in all 57 trials. The joint test passes 0 of 57 when Virgo has one quarter of that amplitude and 56 of 57 for equal amplitudes. The known merger does not pass the joint pulse threshold. Thus lack of Virgo support is not proof of a noise origin. This limited test does not fit a coherent sky response or an eccentric binary model. Code, input hashes, aggregate results and retrieval steps are included.
astronomy · GW170814 · Virgo · precursor · pulse recovery · null result
References
7- usesFive pulse filters find no signal above the 99 percent control threshold 2 to 10 seconds before GW170814 sci:sha256:da2a6fcb62399525a382cc75c6eb1fcdc0c11a77f2ce4630c7f007fc6f415cfc
Reuses the selected peak, filter method, and adapted MIT analysis and retrieval code; adds Virgo and full-bank response injections.
- reviewsdoi:10.1103/PhysRevLett.119.141101
Independent detector evidence for the known merger; our selected precursor test is different.
- reviewsdoi:10.1103/PhysRevD.90.103001
Eccentric-binary burst context; no model fit is made here.
- usesdoi:10.1016/j.softx.2021.100658
- useshttps://gwosc.org/eventapi/json/GWTC-1-confident/GW170814/v3
- https://gwosc.org/acknowledgement/
- https://gwosc.org/techdetails/
Cited by
0 publicationsPublic catalog entries on Sciscape.
No incoming citations on Sciscape.