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Orientation of the disk galaxies in the Coma cluster
Wu, GX ; Hu, FX ; Su, HJ ; Liu, YZ
1997
Source PublicationASTRONOMY AND ASTROPHYSICS
ISSN0004-6361
Volume323Issue:2Pages:317—322
AbstractThe orientations of the spin vectors of 128 disk galaxies (66 SO galaxies, 62 S and Irr galaxies) in the Coma cluster have been statistically studied. With respect to the expected isotropic distribution, the distribution of the spin vectors in the Coma cluster is shown to be anisotropic, in the sense that SO galaxies tend to have their spin vectors parallel to the cluster plane, while the spin vectors of S and Irr galaxies tend to be parallel or perpendicular to the cluster plane. The excess orientation of the projection on the cluster plane of the spin vectors of all disk galaxies are around directions which deviate from the direction pointing to the cluster center by an angle of 30 degrees. Additionally, the projection on the cluster plane of the spin vectors of S and Irr galaxies also tend to point towards the cluster center. The results are discussed in the context of theories of the formation of galaxies and clusters of galaxies.
KeywordLocal Supercluster Rich Clusters Spin Vectors Evolution
Subject AreaAstronomy & Astrophysics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/8419
Collection期刊(老文献)
Recommended Citation
GB/T 7714
Wu, GX,Hu, FX,Su, HJ,et al. Orientation of the disk galaxies in the Coma cluster[J]. ASTRONOMY AND ASTROPHYSICS,1997,323(2):317—322.
APA Wu, GX,Hu, FX,Su, HJ,&Liu, YZ.(1997).Orientation of the disk galaxies in the Coma cluster.ASTRONOMY AND ASTROPHYSICS,323(2),317—322.
MLA Wu, GX,et al."Orientation of the disk galaxies in the Coma cluster".ASTRONOMY AND ASTROPHYSICS 323.2(1997):317—322.
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