Source localizations with the network of space-based gravitational wave detectors
arXiv:2112.02299 · doi:10.1103/PhysRevD.106.024004
Abstract
The sky localization of the gravitational wave (GW) source is an important scientific objective for GW observations. A network of space-based GW detectors dramatically improves the sky localization accuracy compared with an individual detector not only in the inspiral stage but also in the ringdown stage. It is interesting to explore what plays an important role in the improvement. We find that the angle between the detector planes dominates the improvement, and the time delay is the next important factor. A detector network can dramatically improve the source localization for short signals and long signals with most contributions to the signal-to-noise ratio (SNR) coming from a small part of the signal in a short time, and the more SNR contributed by smaller parts, the better improvement by the network. We also find the effects of the arm length in the transfer function and higher harmonics are negligible for source localization with the detector network.
arXiv comment14 pages, 8 figures, 2 tables. Phys. Rev. D accepted. Comments are welcome! arXiv admin note: text overlap with arXiv:2105.11279
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