论文标题
使用快速无线电爆发来测量哈勃参数$ h（z）$的新方法
A New Method to Measure Hubble Parameter $H(z)$ using Fast Radio Bursts
论文作者
论文摘要
哈勃参数$ h（z）$与我们的宇宙的扩展直接相关。它可用于研究暗能量并限制宇宙学模型。在本文中，我们建议可以使用带有红移测量的快速无线电突发（FRB）来测量$ h（z）$。我们使用与$ h（z）$相关的播种培养基的分散度量来测量哈勃参数。我们发现使用蒙特卡洛模拟的500个模拟的FRB具有分散度量和红移信息可以准确测量哈勃参数。 $ h（z）$从标准$λ$ cdm型号的最大偏差约为6 \％，在redshift $ z = 2.4 $。我们还使用蒙特卡洛模拟测试了我们的方法。 Kolmogorov-Smirnov（K-S）测试用于检查模拟。 K-S测试的$ P $ - 值为0.23，确认了模拟的内部一致性。将来，更多的FRB局部化使其成为一种有吸引力的宇宙学探测。
The Hubble parameter $H(z)$ is directly related to the expansion of our Universe. It can be used to study dark energy and constrain cosmology models. In this paper, we propose that $H(z)$ can be measured using fast radio bursts (FRBs) with redshift measurements. We use dispersion measures contributed by the intergalactic medium, which is related to $H(z)$, to measure Hubble parameter. We find that 500 mocked FRBs with dispersion measures and redshift information can accurately measure Hubble parameters using Monte Carlo simulation. The maximum deviation of $H(z)$ from standard $Λ$CDM model is about 6\% at redshift $z= 2.4$. We also test our method using Monte Carlo simulation. Kolmogorov-Smirnov (K-S) test is used to check the simulation. The $p$-value of K-S test is 0.23, which confirms internal consistency of the simulation. In future, more localizations of FRBs make it as an attractive cosmological probe.
