LISA data analysis: Doppler demodulation

被引:15
作者
Cornish, NJ [1 ]
Larson, SL
机构
[1] Montana State Univ, Dept Phys, Bozeman, MT 59717 USA
[2] CALTECH, Space Radiat Lab, Pasadena, CA 91125 USA
关键词
D O I
10.1088/0264-9381/20/10/319
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The orbital motion of the laser interferometer space antenna (LISA) produces amplitude, phase and frequency modulations of a gravitational wave signal. The modulations have the effect of spreading a monochromatic gravitational wave signal across a range of frequencies. The modulations encode useful information about the source location and orientation, but they also have the deleterious effect of spreading a signal across a wide bandwidth, thereby reducing the strength of the signal relative to the instrument noise. We describe a simple method for removing the dominant, Doppler component of the signal modulation. The demodulation reassembles the power from a monochromatic source into a narrow spike and provides a quick way to determine the sky locations and frequencies of the brightest gravitational wave sources.
引用
收藏
页码:S163 / S170
页数:8
相关论文
共 7 条
[1]   Searching for periodic sources with LIGO [J].
Brady, PR ;
Creighton, T ;
Cutler, C ;
Schutz, BF .
PHYSICAL REVIEW D, 1998, 57 (04) :2101-2116
[2]  
CORNISH NJ, UNPUB LISA DATA ANAL
[3]   Angular resolution of the LISA gravitational wave detector [J].
Cutler, C .
PHYSICAL REVIEW D, 1998, 57 (12) :7089-7102
[4]  
Dhurandhar SV, 2001, PHYS REV D, V63, DOI 10.1103/PhysRevD.63.122001
[5]  
Gorski K. M., 1999, PHYSICS
[6]  
HELLINGS RW, 2002, UNPUB
[7]  
LIVAS JC, 1987, THESIS MIT