Author:
Huang Shun-Jia,Hu Yi-Ming,Chen Xian,Zhang Jian-dong,Li En-Kun,Gao Zucheng,Lin Xin-yi
Abstract
Abstract
The measurement of the Hubble constant H
0 plays an important role in the study of cosmology.
In this work, we propose a new method to constrain the Hubble constant using the strongly lensed gravitational wave (SLGW) signals.
Through reparameterization, we find that the lensed waveform is sensitive to the H
0.
Assuming the scenario that no electromagnetic counterpart of the GW source can be identified, our method can still give meaningful constraints on the H
0 with the information of the lens redshift.
We then apply Fisher information matrix and Markov Chain Monte Carlo to evaluate the potential of this method.
For the space-based GW detector, TianQin, the H
0 can be constrained within a relative error of ∼ 1% with a single SLGW event.
Subject
Astronomy and Astrophysics
Cited by
4 articles.
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