Evidence of isotropy on large distance scales from polarizations of radio sources

doi:10.1051/0004-6361/201834192

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	Evidence of isotropy on large distance scales from polarizations of radio sources
	Tiwari, Prabhakar 1; Jain, Pankaj 2
刊名	ASTRONOMY & ASTROPHYSICS
	2019-02-06
卷号	622 页码:5
关键词	large-scale structure of Universe polarization galaxies: active galaxies: high-redshift
ISSN号	1432-0746
DOI	10.1051/0004-6361/201834192
英文摘要	We test the isotropy of radio polarization angle orientations with a robust and reliable dual-frequency polarimetric survey of active galactic nuclei (AGNs). We find that the polarization orientations are consistent with the assumption of isotropy for scales larger than or equal to similar to 800 Mpc. This provides further evidence for isotropy at large distance scales and is likely to impose strong constraints on some of the physical mechanisms that may be invoked to explain past observations of alignment of radio and optical polarizations at large distance scales.
资助项目	NSFC[1171001024] ; NSFC[11673025] ; National Key Basic Research and Development Program of China[2018YFA0404503] ; Science and Engineering Research Board (SERB), Government of India ; NAOC youth talent fund[110000JJ01]
WOS关键词	ANISOTROPY ; PROPAGATION ; ALIGNMENTS ; DIPOLE ; NVSS
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	EDP SCIENCES S A
WOS记录号	WOS:000457859100002
资助机构	NSFC ; NSFC ; National Key Basic Research and Development Program of China ; National Key Basic Research and Development Program of China ; Science and Engineering Research Board (SERB), Government of India ; Science and Engineering Research Board (SERB), Government of India ; NAOC youth talent fund ; NAOC youth talent fund ; NSFC ; NSFC ; National Key Basic Research and Development Program of China ; National Key Basic Research and Development Program of China ; Science and Engineering Research Board (SERB), Government of India ; Science and Engineering Research Board (SERB), Government of India ; NAOC youth talent fund ; NAOC youth talent fund ; NSFC ; NSFC ; National Key Basic Research and Development Program of China ; National Key Basic Research and Development Program of China ; Science and Engineering Research Board (SERB), Government of India ; Science and Engineering Research Board (SERB), Government of India ; NAOC youth talent fund ; NAOC youth talent fund ; NSFC ; NSFC ; National Key Basic Research and Development Program of China ; National Key Basic Research and Development Program of China ; Science and Engineering Research Board (SERB), Government of India ; Science and Engineering Research Board (SERB), Government of India ; NAOC youth talent fund ; NAOC youth talent fund
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/24996]
专题	中国科学院国家天文台
通讯作者	Tiwari, Prabhakar
作者单位	1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.Indian Inst Technol, Dept Phys, Kanpur 208016, Uttar Pradesh, India
推荐引用方式 GB/T 7714	Tiwari, Prabhakar,Jain, Pankaj. Evidence of isotropy on large distance scales from polarizations of radio sources[J]. ASTRONOMY & ASTROPHYSICS,2019,622:5.
APA	Tiwari, Prabhakar,&Jain, Pankaj.(2019).Evidence of isotropy on large distance scales from polarizations of radio sources.ASTRONOMY & ASTROPHYSICS,622,5.
MLA	Tiwari, Prabhakar,et al."Evidence of isotropy on large distance scales from polarizations of radio sources".ASTRONOMY & ASTROPHYSICS 622(2019):5.