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Galaxy optical variability of Virgo cluster: new tracer for environmental influences on galaxies
Yang, Fan1,2,3; Long, Richard J.1,4,5; Shan, Su-Su1,3; Ge, Jun-Qiang1; Guo, Rui1,3; Zhang, Bo1,3; Gao, Jing-Hua1,3; Ji, Xiang1,3; Liu, Ji-Feng1,3
2020-07-01
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
Volume496Issue:1Pages:L59-L63
AbstractWe investigate the relationship between the optical variability of galaxies and their distances from the centre of the Virgo cluster using Palomar Transient Factory data. We define the ratio between the standard deviation of the galaxy brightness and the mean value of the standard deviation as a measure of a galaxy's optical variability. A sample of 814 Virgo galaxies with 230 263 observations shows a monotonically decreasing trend of optical variability with increasing clustercentric distance. The variability level inside the cluster is 3.2 sigma higher than the level outside. We fit the variability with a linear function and find that the data reject a distance-independent model. We examine 217 background galaxies for comparison and find no significant trend in galaxy variability. We assess the relation with Monte Carlo simulation by rebuilding the brightness of each galaxy. The simulation shows a monotonically decreasing relation for member galaxy variability and a distance-independent relation for background galaxies. Our result is consistent with the theory that the cold gas flowing inwards the cluster centre fuels AGN activity. This work is a new implementation of the method using optical variability to investigate the relation between galaxies evolution and their environment.
Keywordgalaxies: active galaxies: clusters: individual: Virgo Cluster galaxies: clusters: intracluster medium galaxies: evolution galaxies: nuclei
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Science Fund for Distinguished Young Scholars ; National Science Fund for Distinguished Young Scholars ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; NSFC ; NSFC ; Beijing Municipal Natural Science Foundation ; Beijing Municipal Natural Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Science Fund for Distinguished Young Scholars ; National Science Fund for Distinguished Young Scholars ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; NSFC ; NSFC ; Beijing Municipal Natural Science Foundation ; Beijing Municipal Natural Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Science Fund for Distinguished Young Scholars ; National Science Fund for Distinguished Young Scholars ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; NSFC ; NSFC ; Beijing Municipal Natural Science Foundation ; Beijing Municipal Natural Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Science Fund for Distinguished Young Scholars ; National Science Fund for Distinguished Young Scholars ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; NSFC ; NSFC ; Beijing Municipal Natural Science Foundation ; Beijing Municipal Natural Science Foundation
DOI10.1093/mnrasl/slaa083
WOS KeywordACTIVE GALACTIC NUCLEI ; SUPERMASSIVE BLACK-HOLES ; STAR-FORMATION ; MASS ; CATALOG ; STARBURSTS ; ORIGIN ; DEPENDENCE ; EVOLUTION ; INSIGHTS
Language英语
Funding ProjectNational Natural Science Foundation of China[11988101] ; National Science Fund for Distinguished Young Scholars[11425313] ; National Key Research and Development Program of China[2016YFA0400800] ; NSFC[11903046] ; Beijing Municipal Natural Science Foundation[1204038]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Science Fund for Distinguished Young Scholars ; National Science Fund for Distinguished Young Scholars ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; NSFC ; NSFC ; Beijing Municipal Natural Science Foundation ; Beijing Municipal Natural Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Science Fund for Distinguished Young Scholars ; National Science Fund for Distinguished Young Scholars ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; NSFC ; NSFC ; Beijing Municipal Natural Science Foundation ; Beijing Municipal Natural Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Science Fund for Distinguished Young Scholars ; National Science Fund for Distinguished Young Scholars ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; NSFC ; NSFC ; Beijing Municipal Natural Science Foundation ; Beijing Municipal Natural Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Science Fund for Distinguished Young Scholars ; National Science Fund for Distinguished Young Scholars ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; NSFC ; NSFC ; Beijing Municipal Natural Science Foundation ; Beijing Municipal Natural Science Foundation
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000560791900012
PublisherOXFORD UNIV PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/82303
Collection中国科学院国家天文台
Corresponding AuthorShan, Su-Su; Liu, Ji-Feng
Affiliation1.Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100101, Peoples R China
2.CALTECH, IPAC, KS 314-6, Pasadena, CA 91125 USA
3.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
4.Tsinghua Univ, Dept Astron, Beijing 100084, Peoples R China
5.Univ Manchester, Jodrell Bank Ctr Astrophys, Dept Phys & Astron, Oxford Rd, Manchester M13 9PL, Lancs, England
Recommended Citation
GB/T 7714
Yang, Fan,Long, Richard J.,Shan, Su-Su,et al. Galaxy optical variability of Virgo cluster: new tracer for environmental influences on galaxies[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2020,496(1):L59-L63.
APA Yang, Fan.,Long, Richard J..,Shan, Su-Su.,Ge, Jun-Qiang.,Guo, Rui.,...&Liu, Ji-Feng.(2020).Galaxy optical variability of Virgo cluster: new tracer for environmental influences on galaxies.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,496(1),L59-L63.
MLA Yang, Fan,et al."Galaxy optical variability of Virgo cluster: new tracer for environmental influences on galaxies".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 496.1(2020):L59-L63.
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