Unbiased Cosmic Opacity Constraints from Standard Sirens and Candles

doi:10.3847/1538-4357/ab1587

	Unbiased Cosmic Opacity Constraints from Standard Sirens and Candles
	Wei, Jun-Jie 1,2
刊名	ASTROPHYSICAL JOURNAL
	2019-05-01
卷号	876 期号:1 页码:7
关键词	cosmology: observations distance scale gravitational waves supemovae: general
ISSN号	0004-637X
DOI	10.3847/1538-4357/ab1587
通讯作者	Wei, Jun-Jie(jjwei@pmo.ac.cn)
英文摘要	The observation of Type Ia supernovae (SNe Ia) plays an essential role in probing the expansion history of the universe. But the possible presence of cosmic opacity can degrade the quality of SNe Ia. The gravitational-wave (GW) standard sirens, produced by the coalescence of double neutron stars and black hole-neutron star binaries, provide an independent way to measure the distances of GW sources, which are not affected by cosmic opacity. In this paper, we first propose that combining the GW observations of third-generation GW detectors with SN Ia data in similar redshift ranges offers a novel and model-independent method to constrain cosmic opacity. Through Monte Carlo simulations, we find that one can constrain the cosmic opacity parameter kappa with an accuracy of sigma(kappa) similar to 0.046 by comparing the distances from 100 simulated GW events and 1048 current Pantheon SNe Ia. The uncertainty of kappa can be further reduced to similar to 0.026 if 800 GW events are considered. We also demonstrate that combining 2000 simulated SNe Ia and 1000 simulated GW events could result in much severer constraints on the transparent universe, for which kappa = 0.0000 +/- 0.0044. Compared to previous opacity constraints involving distances from other cosmic probes, our method using GW standard sirens and SN Ia standard candles at least achieves competitive results.
WOS关键词	DISTANCE-DUALITY RELATION ; GRAVITATIONAL-WAVES ; R-H ; IA ; DEFINITION ; SUPERNOVAE ; LAMBDA ; DUST ; CT
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000467111100005
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/24655]
专题	中国科学院紫金山天文台
通讯作者	Wei, Jun-Jie
作者单位	1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210034, Jiangsu, Peoples R China 2.Guangxi Univ, Guangxi Key Lab Relativist Astrophys, Nanning 530004, Peoples R China
推荐引用方式 GB/T 7714	Wei, Jun-Jie. Unbiased Cosmic Opacity Constraints from Standard Sirens and Candles[J]. ASTROPHYSICAL JOURNAL,2019,876(1):7.
APA	Wei, Jun-Jie.(2019).Unbiased Cosmic Opacity Constraints from Standard Sirens and Candles.ASTROPHYSICAL JOURNAL,876(1),7.
MLA	Wei, Jun-Jie."Unbiased Cosmic Opacity Constraints from Standard Sirens and Candles".ASTROPHYSICAL JOURNAL 876.1(2019):7.