Observational constraints on Rastall gravity from rotation curves of low surface brightness galaxies

doi:10.1088/1674-1137/44/8/085104

YNAO OpenIR > 高能天体物理研究组

	Observational constraints on Rastall gravity from rotation curves of low surface brightness galaxies
	Tang, Meirong1,3,4,5 ; Xu, Zhaoyi 2; Wang JC(王建成)1,3,4,5
发表期刊	CHINESE PHYSICS C
	2020-08-01
卷号	44 期号:8 页码:8
DOI	10.1088/1674-1137/44/8/085104
产权排序	第1完成单位
收录类别	SCI
关键词	Rastall gravity energy condition LSB galaxies
摘要	Rastall gravity is a modification of Einstein's general relativity in which the energy-momentum conservation is not satisfied and depends on the gradient of the Ricci curvature. It is currently in dispute whether Rastall gravity is equivalent to general relativity (GR). In this work, we constrain the theory using the rotation curves of low surface brightness (LSB) spiral galaxies. By fitting the rotation curves of LSB galaxies, we obtain parameter beta of the Rastall gravity. The beta values of LSB galaxies satisfy the weak energy condition (WEC) and strong energy condition (SEC). Combining the beta values of type Ia supernovae and the gravitational lensing of elliptical galaxies on Rastall gravity, we conclude that Rastall gravity may be equivalent to general relativity.
资助项目	National Natural Science Foundation of China[11503078] ; National Natural Science Foundation of China[11573060] ; National Natural Science Foundation of China[11847310] ; National Natural Science Foundation of China[11661161010]
项目资助者	National Natural Science Foundation of China[11503078, 11573060, 11847310, 11661161010]
语种	英语
学科领域	天文学 ; 天体物理学 ; 高能天体物理学 ; 星系与宇宙学
文章类型	Article
出版者	IOP PUBLISHING LTD
出版地	TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN	1674-1137
URL	查看原文
WOS记录号	WOS:000557439000001
WOS研究方向	Physics
WOS类目	Physics, Nuclear ; Physics, Particles & Fields
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ynao.ac.cn/handle/114a53/23633
专题	高能天体物理研究组中国科学院天体结构与演化重点实验室
通讯作者	Tang, Meirong
作者单位	1.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming 650216, China 2.Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China 3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming 650216, China 4.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012, China 5.University of Chinese Academy of Sciences, Beijing 100049, China
第一作者单位	中国科学院云南天文台
通讯作者单位	中国科学院云南天文台
推荐引用方式 GB/T 7714	Tang, Meirong,Xu, Zhaoyi,Wang JC. Observational constraints on Rastall gravity from rotation curves of low surface brightness galaxies[J]. CHINESE PHYSICS C,2020,44(8):8.
APA	Tang, Meirong,Xu, Zhaoyi,&Wang JC.(2020).Observational constraints on Rastall gravity from rotation curves of low surface brightness galaxies.CHINESE PHYSICS C,44(8),8.
MLA	Tang, Meirong,et al."Observational constraints on Rastall gravity from rotation curves of low surface brightness galaxies".CHINESE PHYSICS C 44.8(2020):8.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Observational constr（1284KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览请求全文