Orientation of the field galaxies in the local supercluster

	Orientation of the field galaxies in the local supercluster
	Yuan, QR; Hu, FX; Su, HJ; Huang, KJ
刊名	ASTRONOMICAL JOURNAL
	1997-10-01
卷号	114 期号:4 页码:1308-1312
关键词	SPIN VECTORS 80 MPC
ISSN号	0004-6256
英文摘要	In 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.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	SPIN VECTORS ; 80 MPC
收录类别	SCI
语种	英语
WOS记录号	WOS:A1997XX79700003
公开日期	2013-02-05
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/8416]
专题	紫金山天文台_期刊（老文献）
作者单位	ACAD SINICA, PURPLE MT OBSERV, NANJING 210008, PEOPLES R CHINA
推荐引用方式 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.