论文标题
与爱因斯坦望远镜的重力波对哈勃常数的模型无关的约束
A model-independent constraint on the Hubble constant with gravitational waves from the Einstein Telescope
论文作者
论文摘要
在本文中，我们以宇宙模型独立的方式研究了重力波标准警报器对哈勃常数的预期限制。在众所周知的哈勃法律的框架中，来自本地宇宙中每个检测到的二进制合并的GW信号（$ z <0.10 $）提供了亮度距离$ d_l $的测量，因此hubble常数$ h_0 $。重点关注第三代重力波检测器（Einstein望远镜等）的重力波的模拟数据，并结合了由电磁反零件和宿主星系确定的红移，人们可以期望哈勃一直在$ \ sim 10^{-2^{ - 2} $ client ficty bn fly bn bn（bn）（bn）的精确限制。来自其他类型的未来重力波源（NS-BH和BBH）的其他标准测量结果将提供此重要宇宙学参数的更精确约束。因此，我们获得了重力波源的光度距离的未来测量值将比当前的分析更有竞争力，这使得它可以以宇宙模型的方式对哈勃常数更加充满活力和令人信服的约束。
In this paper, we investigate the expected constraints on the Hubble constant from the gravitational-wave standard sirens, in a cosmological-model-independent way. In the framework of the well-known Hubble law, the GW signal from each detected binary merger in the local universe ($z<0.10$) provides a measurement of luminosity distance $D_L$ and thus the Hubble constant $H_0$. Focusing on the simulated data of gravitational waves from the third-generation gravitational wave detector (the Einstein Telescope, ET), combined with the redshifts determined from electromagnetic counter parts and host galaxies, one can expect the Hubble constant to be constrained at the precision of $\sim 10^{-2}$ with 20 well-observed binary neutron star (BNS) mergers. Additional standard-siren measurements from other types of future gravitational-wave sources (NS-BH and BBH) will provide more precision constraints of this important cosmological parameter. Therefore, we obtain that future measurements of the luminosity distances of gravitational waves sources will be much more competitive than the current analysis, which makes it expectable more vigorous and convincing constraints on the Hubble constant in a cosmological-model-independent way.
