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

Autor:	Yu-Kuang Chu, Guo-Chin Liu, Kin-Wang Ng
Rok vydání:	2021
Předmět:	Astrophysics::High Energy Astrophysical Phenomena FOS: Physical sciences General Relativity and Quantum Cosmology (gr-qc) Quantitative Biology::Genomics General Relativity and Quantum Cosmology
Zdroj:	Physical Review D. 104
ISSN:	2470-0029 2470-0010
DOI:	10.1103/physrevd.104.124018
Popis:	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. Comment: 13 pages, 4 figures, Submitted to PRD. arXiv admin note: text overlap with arXiv:2002.01606
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::091e92ca0e087a76f4a9e392e447adb9 https://doi.org/10.1103/physrevd.104.124018 Zobrazit plný text záznamu