The optimal schedule for pulsar timing array observations

被引:48
作者
Lee, K. J. [1 ,2 ]
Bassa, C. G. [2 ]
Janssen, G. H. [2 ]
Karuppusamy, R. [1 ,2 ]
Kramer, M. [1 ,2 ]
Smits, R. [2 ,3 ]
Stappers, B. W. [2 ]
机构
[1] Max Planck Inst Radioastron, D-53121 Bonn, Germany
[2] Univ Manchester, Jodrell Bank, Ctr Astrophys, Manchester M13 9PL, Lancs, England
[3] Stichting ASTRON, NL-7990 AA Dwingeloo, Netherlands
关键词
gravitational waves; pulsars: general; GRAVITATIONAL-RADIATION; LIMITS; WAVES; PROBE;
D O I
10.1111/j.1365-2966.2012.21070.x
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
In order to maximize the sensitivity of pulsar timing arrays to a stochastic gravitational wave background, we present computational techniques to optimize observing schedules. The techniques are applicable to both single- and multitelescope experiments. The observing schedule is optimized for each telescope by adjusting the observing time allocated to each pulsar while keeping the total amount of observing time constant. The optimized schedule depends on the timing noise characteristics of each individual pulsar as well as the performance of instrumentation. Several examples are given to illustrate the effects of different types of noise. A method to select the most suitable pulsars to be included in a pulsar timing array project is also presented.
引用
收藏
页码:2642 / 2655
页数:14
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