Pulsar timing arrays: the promise of gravitational wave detection

被引:50
作者
Lommen, Andrea N. [1 ]
机构
[1] Franklin & Marshall Coll, Lancaster, PA 17604 USA
基金
美国国家科学基金会;
关键词
gravitational waves; pulsars; radio telescopes; signal processing; black holes; BLACK-HOLE BINARIES; LIMITS; GALAXY; SENSITIVITY; PRECISION; RADIATION; SEARCHES; SYSTEMS; DISCOVERY; DISTANCE;
D O I
10.1088/0034-4885/78/12/124901
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We describe the history, methods, tools, and challenges of using pulsars to detect gravitational waves. Pulsars act as celestial clocks detecting gravitational perturbations in space-time at wavelengths of light-years. The field is poised to make its first detection of nanohertz gravitational waves in the next 10 years. Controversies remain over how far we can reduce the noise in the pulsars, how many pulsars should be in the array, what kind of source we will detect first, and how we can best accommodate our large bandwidth systems. We conclude by considering the important question of how to plan for a post-detection era, beyond the first detection of gravitational waves.
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页数:21
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