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Orientation of the field galaxies in the local supercluster
Yuan, QR; Hu, FX; Su, HJ; Huang, KJ
1997-10-01
Source PublicationASTRONOMICAL JOURNAL
ISSN0004-6256
Volume114Issue:4Pages:1308-1312
AbstractIn this paper we studied the orientation of the spin vectors (SVs) for 302 field galaxies in the Local Supercluster (LSC). All galaxies in our sample are selected from the Photometric Atlas of Northern Bright Galaxies after an exclusion of the members of the clusters and groups of galaxies with at least five members within the LSC. The SV orientation of these field galaxies is found to be anistropic, which is well shown in chi(2) tests of the azimuthal angle and area distributions. The histograms of the polar angle distribution exhibit a weak tendency that the field galaxies in the LSC preferentially have their SVs parallel to the LSC plane. Comparison with the results for the Virgo cluster members shows that the post-formation epoch dynamics did perturb the galactic SV orientation. This is supported by two facts: (i) There is a significant hump at high polar angle for the Virgo members while no similar hump is found in our sample. (ii) The SV projections on the LSC plane for the field galaxies show their excess direction significantly deviated from the direction pointing towards the Virgo center, unlike the Virgo cluster members. (C) 1997 American Astronomical Society.
KeywordSpin Vectors 80 Mpc
Subject AreaAstronomy & Astrophysics
WOS HeadingsScience & Technology ; Physical Sciences
WOS KeywordSPIN VECTORS ; 80 MPC
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:A1997XX79700003
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/8416
Collection期刊(老文献)
AffiliationACAD SINICA, PURPLE MT OBSERV, NANJING 210008, PEOPLES R CHINA
Recommended Citation
GB/T 7714
Yuan, QR,Hu, FX,Su, HJ,et al. Orientation of the field galaxies in the local supercluster[J]. ASTRONOMICAL JOURNAL,1997,114(4):1308-1312.
APA Yuan, QR,Hu, FX,Su, HJ,&Huang, KJ.(1997).Orientation of the field galaxies in the local supercluster.ASTRONOMICAL JOURNAL,114(4),1308-1312.
MLA Yuan, QR,et al."Orientation of the field galaxies in the local supercluster".ASTRONOMICAL JOURNAL 114.4(1997):1308-1312.
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