Logo image
返回
GW230814: Investigation of a Loud Gravitational-wave Signal Observed with a Single Detector
期刊文章   同儕審查

GW230814: Investigation of a Loud Gravitational-wave Signal Observed with a Single Detector

A. G. Abac, I. Abouelfettouh, F. Acernese, K. Ackley, C. Adamcewicz, S. Adhicary, D. Adhikari, N. Adhikari, R. X. Adhikari, V. K. Adkins, …
Astrophysical journal. Letters, 卷.1004(2), 頁.L23
20/06/2026
DOI: https://doi.org/10.3847/2041-8213/ae2ad3
Web of Science ID: WOS:001806596000001

摘要

Astronomy & Astrophysics Physical Sciences Science & Technology
GW230814, detected by the LIGO Livingston observatory with a signal-to-noise ratio of 42.4, represents the loudest gravitational-wave signal in the GWTC-4.0 catalog. Its source is consistent with a binary black hole coalescence with component masses m(1) = 33.7(-2.2)(+2.9) M-circle dot and m(2) = 28.2(-3.1)(+2.2) M-circle dot and a small effective inspiral spin chi(eff) = -0.01(-0.07)(+0.06). The high signal-to-noise ratio enabled us to detect an l = vertical bar m vertical bar = 4 mode in the inspiral-merger-ringdown signal for the first time (with Bayes factor approximate to 10), as well as enabling a range of tests of consistency between theoretical predictions and the observed waveform. While most of these tests show agreement with theoretical predictions, there are suggestions of minor deviations in the ringdown phase. Simulations that incorporate general relativity and realistic detector noise reproduce similar deviations, suggesting that they do not constitute evidence for a breakdown of general relativity. The observation of GW230814 demonstrates that the unprecedented sensitivity of the detectors enables highly significant detections with a single observatory. However, without corroborating data from a multidetector network, the ability to draw rigorous conclusions about fundamental physics remains severely limited.

檔案與連結 (1)

url
https://doi.org/10.3847/2041-8213/ae2ad3檢視
已出版(紀錄版本) 開放

相關連結

指標

1 檢視次數
6 被引用次數 - Web of Science

詳細資料

Logo image