论文标题
用太极拳约束重力波极化
Constraining gravitational-wave polarizations with Taiji
论文作者
论文摘要
空间重力波检测器由三个航天器的三角形组成，这使得由于探测器在太空中运动的运动，可以检测引力波的极化模式。在本文中，我们探讨了太极拳在参数化后的伊恩斯坦框架中检测极化模式的能力。假设在红移$ z = 1 $时，假设总质量为$ m = 4 \ times10^5 \，m _ {\ odot} $，那么我们发现太极拳可以测量偶极和四倍的排放（$Δα_d/α_d$ andα_d$和$δα__Q/α__Q$ 0.具有$α_d= 0.001 $的基准价值，标量横向和纵向模式（$δα_b$和$Δα_l$）最高为$ \ sim 0.01 $，以及向量模式（$δα_V$），最高可达$ \ $ \ sim 0.0005 $。
Space-based gravitational-wave detectors consist of a triangle of three spacecraft, which makes it 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 parametrized post-Einsteinian framework. Assuming massive black hole binaries with the total mass of $M=4\times10^5\,M_{\odot}$ at redshift of $z=1$, we find that Taiji can measure the dipole and quadruple emission ($Δα_D/α_D$ and $Δα_Q/α_Q$) with the accuracy of up to $\sim 0.04\%$, with the fiducial value of $α_D=0.001$, the scalar transverse and longitudinal modes ($Δα_B$ and $Δα_L$) up to $\sim 0.01$, and the vector modes ($Δα_V$) up to $\sim 0.0005$.
