Geometrical expression of the angular resolution of a network of gravitational-wave detectors and improved localization methods
We report for the first time a method-independent geometrical expression for the angular resolution of an arbitrary network of interferometric gravitational wave (GW) detectors when the arrival-time of a GW is unknown. We discuss the implications of our results on how to improve angular resolutions of a GW network and on improvements of localization methods. An example of an improvement to the null-stream localization method for GWs of unknown waveforms is demonstrated.
© 2008 IOP Publishing Ltd. This work is supported by the Alexander von Humboldt Foundation's Sofja Kovalevskaja Programme funded by the German Federal Ministry of Education and Research. YC is supported in part by the NSF grants PHY-0653653 and PHY-0601459, and by David and Barbara Groce start-up fund at Caltech. XF is supported in part by the National Natural Science Foundation of China, under Grant No. 10533010, 973 Program No. 2007CB815401 and Program for New Century Excellent Talents in University (NCET) of China.
Published - WENjpcs08.pdf