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星系团Abell85的动力学子结构
  • ISSN号：0001-5245
  • 期刊名称：《天文学报》
  • 时间：0
  • 分类：P157[天文地球—天文学]
  • 作者机构：[1]南京师范大学物理科学与技术学院,南京210046
  • 相关基金：国家自然科学基金（10778618,10633020）资助项目
作者： 万吉莉[1], 袁启荣[1]
关键词： 星系, 星系团, 个别, 星系, 运动学与动力学, 星系, CD, galaxies： clusters： individual, galaxies, kinematics and dynamics, galaxies, cD
中文摘要：

Abell85是位于南半天区红移为0．055的cD星系团．基于前人的光谱观测数据和SDSS（Sloan Digital Sky Survey）数据，利用3σ方法筛选出该星系团的370个成员星系，并对其动力学情况进行了分析．从这些成员星系的空间分布和局域视向速度分布中，发现了该星系团含有4个明显的子结构，且正处于两两并合之中．这表明Abell85处在动力学活跃的状态，远未达到动力学平衡．

英文摘要：

Abell 85 is a cD galaxy cluster （z-0.055） at southern hemisphere. Based on the spectroscopic data in literatures and SDSS （Sloan Digital Sky Survey） data, 370 member galaxies of this cluster are obtained by 3a clipping algorithm, and the dynamical structures are investigated. By studying spatial distribution and localized variation of velocity distribution, four substructures have been found to be two merging pairs. This suggests that the galaxy cluster Abell 85 is still dynamically active, far from the status of dynamical equilibrium.

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期刊信息
  • 《天文学报》
  • 中国科技核心期刊
  • 主管单位:中国科学院
  • 主办单位:中国天文学会 中国科学院紫金山天文台
  • 主编：甘为群
  • 地址：南京市栖霞区元化路8号
  • 邮编：210023
  • 邮箱：twxb@pmo.ac.cn
  • 电话：025-83332133
  • 国际标准刊号：ISSN：0001-5245
  • 国内统一刊号：ISSN：32-1113/P
  • 邮发代号:2-818
  • 获奖情况:
  • 1992年获中国科协优秀期刊三等奖,1996年获中国科学院优秀期刊三等奖,2000年获中国科协优秀期刊三等奖,中国期刊方阵“双效”期刊
  • 国内外数据库收录:
  • 日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:1792