Abstract

Space-based gravitational-wave detectors consist of a triangle of three spacecraft, which makesit possible to detect polarization modes of gravitational waves due to the motion of the detectors in space. In this paper we explore the ability of Taiji to detect the polarization modes in the parameterized post-Einsteinian framework. Assuming massive black hole binaries with the total mass of M = 4 × 10⁵ M_⊙ at redshift of z = 1, we find that Taiji can measure the dipole and quadruple emission (∆α_D/α_D and ∆α_Q/α_Q) with the accuracy of up to ∼ 0.04%, the scalar transverse and longitudinal modes (∆α_B and ∆α_L) up to ∼ 0.01, and the vector modes (∆α_V ) up to ∼ 0.0005.

https://arxiv.org/pdf/2006.04413.pdf

Phys. Rev. D 102, 124050 (2020)