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Large Scale Distribution of Galaxies in the Field HS 47.5–22. II. Observational Data Analysis
Astrophysical Bulletin ( IF 1.2 ) Pub Date : 2020-09-22 , DOI: 10.1134/s1990341320030062
A. A. Grokhovskaya , S. N. Dodonov , T. A. Movsesyan

Abstract

We present results of the study of the large scale distribution of galaxies up to z ~ 0.8 in the field HS 47.5–22 based on the photometric data obtained with the 1 m Schmidt telescope of the Byurakan astrophysical observatory (BAO NAS). The complete sample includes 28 398 galaxies brighter than \({{m}_{{{\text{AB}}}}} = {{23}^{{\text{m}}}}~\)up to \(z \sim 0.8\). Clusterings of density in the large scale distribution of galaxies was conducted using two independent methods of determining the density contrast maps in 57 narrow layers of the three-dimensional large scale distribution of galaxies: the algorithm with the adaptive kernel and smoothing of the environment density and the Voronoi tessellation. We determined more than 250 significant large scale overdensities. The results obtained demonstrate the wide range of structures from 0.5 to 10 Mpc (the comoving size) in the full interval of redshifts up to \(z \sim 0.8\).



中文翻译:

HS 47.5–22领域中星系的大规模分布。二。观测资料分析

摘要

我们星系的大尺度分布的研究目前的结果高达Z ^〜0 HS 47.5–22中的第8位是基于用Byurakan天体观测站(BAO NAS)的1 m施密特望远镜获得的光度数据。完整的样品包括28个398星系亮度比\({{M} _ {{{\文本{AB}}}}} = {{23} ^ {{\文本{M}}}}〜\)高达\ (z \ sim 0.8 \)。使用两种独立的方法确定星系大规模分布中的密度聚类,这两种方法用于确定星系三维大规模分布的57个狭窄层中的密度对比图:自适应核算法和环境密度平滑算法,以及Voronoi镶嵌。我们确定了250多个明显的大规模超密度。获得的结果表明,在整个红移间隔内,从0.5到10 Mpc(同向移动的大小)的结构范围很广,直到\(z \ sim 0.8 \)

更新日期:2020-09-22
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