Overlap reduction functions for pulsar timing arrays and astrometry

被引：1
作者：
Inomata, Keisuke [1 ]
Kamionkowski, Marc [1 ]
Toral, Celia M. [2 ]
Taylor, Stephen R. [2 ]
机构：
[1] Johns Hopkins Univ, William H Miller Dept Phys & Astron 3, 3400 North Charles St, Baltimore, MD 21218 USA
[2] Vanderbilt Univ, Dept Phys & Astron, 2301 Vanderbilt Pl, Nashville, TN 37235 USA
来源：
PHYSICAL REVIEW D | 2024年 / 110卷 / 06期
关键词：
GRAVITATIONAL-RADIATION; WAVES; PROBE;
D O I：
10.1103/PhysRevD.110.063547
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present an efficient technique for calculating the angular two-point correlation functions (or "overlap reduction functions") induced by gravitational waves in both the pulse arrival times of pulsars and in the angular deflections of distant sources. In the most general case, there are six autocorrelations and crosscorrelations for the pulse arrival times and the two components of the angular deflection. We provide results for spin-2 (i.e., general-relativistic) gravitational waves as well as the spin-1 modes that may arise in alternative-gravity theories. These calculations can be easily implemented for future analysis or study, and we provide code to do so.
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页数：18
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