The large-scale effect of environment on galactic conformity

doi:10.1093/mnras/sty832

CORC > 国家天文台 > 中国科学院国家天文台

	The large-scale effect of environment on galactic conformity
	Sun, Shuangpeng 1,3; Guo, Qi 1,3; Wang, Lan 3; Lacey, Cedric G.2; Wang, Jie 1,3; Gao, Liang 1,2,3; Pan, Jun 3
刊名	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
	2018-07-01
卷号	477 期号:3 页码:3136-3144
关键词	galaxies: evolution galaxies: statistics large-scale structure of Universe
ISSN号	0035-8711
DOI	10.1093/mnras/sty832
英文摘要	We use a volume-limited galaxy sample from the Sloan Digital Sky Survey Data Release 7 to explore the dependence of galactic conformity on the large-scale environment, measured on similar to 4Mpc scales. We find that the star formation activity of neighbour galaxies depends more strongly on the environment than on the activity of their primary galaxies. In underdense regions most neighbour galaxies tend to be active, while in overdense regions neighbour galaxies are mostly passive, regardless of the activity of their primary galaxies. At a given stellar mass, passive primary galaxies reside in higher density regions than active primary galaxies, leading to the apparently strong conformity signal. The dependence of the activity of neighbour galaxies on environment can be explained by the corresponding dependence of the fraction of satellite galaxies. Similar results are found for galaxies in a semi-analytical model, suggesting that no new physics is required to explain the observed large-scale conformity.
资助项目	National Key Program for Science and Technology Research and Development[2017YFB0203300] ; NSFC[11425312] ; NSFC[11573033] ; NSFC[11622325] ; NSFC[11573031] ; NSFC[11373029] ; NSFC[1139037] ; NSFC[11573030] ; Institute for Computational Cosmology at Durham University ; 'Recruitment Program of Global Youth Experts' of China ; NAOC[Y434011V01] ; 973 program grant[2015CB857005] ; Ministry of Science and Technology through 973 grant[2015CB857001] ; UK Science and Technology Facilities Council[ST/L00075X/1]
WOS关键词	DIGITAL SKY SURVEY ; GALAXY FORMATION ; PHYSICAL-PROPERTIES ; STAR-FORMATION ; DARK-MATTER ; S0 GALAXIES ; EVOLUTION ; CLUSTERS ; UNIVERSE ; ORIGIN
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	OXFORD UNIV PRESS
WOS记录号	WOS:000433893700020
资助机构	National Key Program for Science and Technology Research and Development ; National Key Program for Science and Technology Research and Development ; NSFC ; NSFC ; Institute for Computational Cosmology at Durham University ; Institute for Computational Cosmology at Durham University ; 'Recruitment Program of Global Youth Experts' of China ; 'Recruitment Program of Global Youth Experts' of China ; NAOC ; NAOC ; 973 program grant ; 973 program grant ; Ministry of Science and Technology through 973 grant ; Ministry of Science and Technology through 973 grant ; UK Science and Technology Facilities Council ; UK Science and Technology Facilities Council ; National Key Program for Science and Technology Research and Development ; National Key Program for Science and Technology Research and Development ; NSFC ; NSFC ; Institute for Computational Cosmology at Durham University ; Institute for Computational Cosmology at Durham University ; 'Recruitment Program of Global Youth Experts' of China ; 'Recruitment Program of Global Youth Experts' of China ; NAOC ; NAOC ; 973 program grant ; 973 program grant ; Ministry of Science and Technology through 973 grant ; Ministry of Science and Technology through 973 grant ; UK Science and Technology Facilities Council ; UK Science and Technology Facilities Council ; National Key Program for Science and Technology Research and Development ; National Key Program for Science and Technology Research and Development ; NSFC ; NSFC ; Institute for Computational Cosmology at Durham University ; Institute for Computational Cosmology at Durham University ; 'Recruitment Program of Global Youth Experts' of China ; 'Recruitment Program of Global Youth Experts' of China ; NAOC ; NAOC ; 973 program grant ; 973 program grant ; Ministry of Science and Technology through 973 grant ; Ministry of Science and Technology through 973 grant ; UK Science and Technology Facilities Council ; UK Science and Technology Facilities Council ; National Key Program for Science and Technology Research and Development ; National Key Program for Science and Technology Research and Development ; NSFC ; NSFC ; Institute for Computational Cosmology at Durham University ; Institute for Computational Cosmology at Durham University ; 'Recruitment Program of Global Youth Experts' of China ; 'Recruitment Program of Global Youth Experts' of China ; NAOC ; NAOC ; 973 program grant ; 973 program grant ; Ministry of Science and Technology through 973 grant ; Ministry of Science and Technology through 973 grant ; UK Science and Technology Facilities Council ; UK Science and Technology Facilities Council
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/21633]
专题	中国科学院国家天文台
通讯作者	Guo, Qi
作者单位	1.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100039, Peoples R China 2.Univ Durham, Dept Phys, Inst Computat Cosmol, South Rd, Durham DH1 3LE, England 3.Chinese Acad Sci, Natl Astron Observ, Key Lab Computat Astrophys, Beijing 100012, Peoples R China
推荐引用方式 GB/T 7714	Sun, Shuangpeng,Guo, Qi,Wang, Lan,et al. The large-scale effect of environment on galactic conformity[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2018,477(3):3136-3144.
APA	Sun, Shuangpeng.,Guo, Qi.,Wang, Lan.,Lacey, Cedric G..,Wang, Jie.,...&Pan, Jun.(2018).The large-scale effect of environment on galactic conformity.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,477(3),3136-3144.
MLA	Sun, Shuangpeng,et al."The large-scale effect of environment on galactic conformity".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 477.3(2018):3136-3144.