LISA time-delay interferometry zero-signal solution: Geometrical properties

被引:22
作者
Tinto, M
Larson, SL
机构
[1] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
[2] CALTECH, Space Radiat Lab, Pasadena, CA 91125 USA
来源
PHYSICAL REVIEW D | 2004年 / 70卷 / 06期
关键词
D O I
10.1103/PhysRevD.70.062002
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Time-delay interferometry (TDI) is the data processing technique needed for generating interferometric combinations of data measured by the multiple Doppler readouts available onboard the three Laser Interferometer Space Antenna (LISA) spacecraft. Within the space of all possible interferometric combinations TDI can generate, we have derived a specific combination that has zero response to the gravitational wave signal, and called it the zero-signal solution (ZSS). This is a two-parameter family of linear combinations of the generators of the TDI space, and its response to a gravitational wave becomes null when these two parameters coincide with the values of the angles of the source location in the sky. Remarkably, the ZSS does not rely on any assumptions about the gravitational waveform, and in fact it works for waveforms of any kind. Our approach is analogous to the data analysis method introduced by Gursel and Tinto in the context of networks of Earth-based, wideband, interferometric gravitational wave detectors observing in coincidence a gravitational wave burst. The ZSS should be regarded as an application of the Gursel and Tinto method to the LISA data.
引用
收藏
页码:062002 / 1
页数:13
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