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arXiv · 2107.00536

Observation of polarized stochastic gravitational-wave background in pulsar-timing-array experiments

Yu-Kuang Chu·Guo-Chin Liu·Kin-Wang Ng
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Abstract

We study the observation of polarized stochastic gravitational-wave background (SGWB) in pulsar-timing-array experiments. The time residual for an observed pulsar is formulated as a line-of-sight integral that incorporates the effects of the pulsar term, from which we construct the correlation function of the time residual between a pair of pulsars in terms of the overlap reduction functions (ORFs) for the SGWB intensity and polarization anisotropies. Our formulation provides a numerical scheme for computing the ORFs for high multipole moments and the lowest-moment ORFs for the SGWB linear polarization are worked out for the first time.

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Yu-Kuang Chu, Guo-Chin Liu, Kin-Wang Ng. 2021-07-01. Observation of polarized stochastic gravitational-wave background in pulsar-timing-array experiments. https://doi.org/10.1103/physrevd.104.124018

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