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Alternative LISA-TAIJI networks: Detectability of the isotropic stochastic gravitational wave background

2021/08/31 by G. Wang, Gang Wang, Wen-Biao Han · 1 citation
Physics and Astronomy · #Astrophysics #Black hole (networking) #Computer science #Computer security #Cosmology and Gravitation Theories #Gamma-ray bursts and supernovae #Gravitational wave #Gravitational wave background #Isotropy #LIGO #Optics #Physics #Pulsars and Gravitational Waves Research #gr-qc

paper · pdf · doi:10.1103/physrevd.104.104015

published in Physical review. D/Physical review. D. 104(10) (American Physical Society) · 16 pages, 9 figures, accepted for publication in PRD

openalex publication_date 2021/11/05 · arxiv created 2021/11/08 · arxiv updated 2021/11/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

In Paper I, three TAIJI orbital deployments have been proposed to compose alternative LISA-TAIJI networks: TAIJIm (leading the Earth by 20\ifmmode^∘\else\textdegree\fi and \ensuremath-60\ifmmode^∘\else\textdegree\fi inclined with respect to ecliptic plane), TAIJIp (leading the Earth by 20\ifmmode^∘\else\textdegree\fi and +60\ifmmode^∘\else\textdegree\fi inclined), TAIJIc (colocated and coplanar with LISA) with respect to the LISA mission (trailing the Earth by 20\ifmmode^∘\else\textdegree\fi and +60\ifmmode^∘\else\textdegree\fi inclined). And the LISA-TAIJIm network has been identified as the most capable configuration for massive black hole binary observation. In this work, we examine the performance of three networks to the stochastic gravitational wave background (SGWB) especially for the comparison of two eligible configurations, LISA-TAIJIm and LISA-TAIJIp. This investigation shows that the detectability of LISA-TAIJIm is competitive with the LISA-TAIJIp network for some specific SGWB spectral shapes. And the capability of LISA-TAIJIm is also identical to LISA-TAIJIp to separate the SGWB components by determining the parameters of signals. Considering the performances on SGWB and massive black hole binaries observations, the TAIJIm could be recognized as an optimal option to fulfill joint observations with LISA.

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