对星系群和野外活动星系的研究

R. Andreasyan, S. Hakopian, A. P. Mahtessian, H. Abrahamyan, G. Paronyan, A. G. Sukiasyan
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引用次数: 0

摘要

我们从我们的样本中研究中心射电星系周围半径为500pc的区域。在这项研究中,我们选择了大约30个附近的3C射电星系,它们具有不同的FR类型。我们带来了光学星系的地图覆盖在3C射电源的射电图上。它还使用了所有可用波长的这些区域的地图。在这里,我们对FRI型3C31射电星系进行了更详细的分析和新的结果。研究了第一和第二群星系的形态类型对星等差的依赖关系。结果表明,在大星等差的第一和第二星等群星系中,椭圆星系的相对数量没有增加。本文介绍了对来自两个相邻SBS场的大约100个星系(“100SBS”)样本的研究结果,这些星系在SDSS中有光谱数据。对100个sbs天体的两种分类进行了比较分析,分别来自SDSS中的Starburst或Starforming,来自另一侧的SfGcont和SfGneb,并有可能根据我们的恒星形成星系方案进一步详细说明。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A study of active galaxies in groups of galaxies and in the field
We study regions with radius of 500 pc around of the central radio galaxies from our sample. For this study were chosen about 30 nearby 3C radio galaxies of different FR types. We bring the maps of optical galaxies that are overlaid on the radio map of 3C radio source. It was used also the maps of these regions in all available wavelength. Here we present more detail analyses and new results for the radio galaxy of FRI type 3C31. The dependencies of the morphological types of the first and second ranked group galaxies on the magnitude gap were studied. It is shown that there is no increase in the relative number of elliptical galaxies among the first and second ranked group galaxies with large magnitude gaps. Some results are presented on studies of a sample of about hundred galaxies (“100SBS”) from two adjacent fields of SBS, which have spectral data in SDSS. Comparative analysis was done between two classifications that the 100SBS objects got - from one side Starburst or Starforming in SDSS, from the other - SfGcont and SfGneb, with a possibility of further detailing in accordance to our scheme for star-forming galaxies.
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