The peculiarities in O-type Galaxy clusters
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Дата
2017
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Видавець
Одеський національний університет імені І. І. Мечникова
Анотація
We present the results of analysis of
2D distribution of galaxies in galaxy cluster fields. The
Catalogue of Galaxy Clusters and Groups PF (Panko
& Flin) was used as input observational data set. We
selected open rich PF galaxy clusters, containing 100
and more galaxies for our study. According to Panko
classification scheme open galaxy clusters (O-type)
have no concentration to the cluster center. The data
set contains both pure O-type clusters and O-type
clusters with overdence belts, namely OL and OF
types. According to Rood & Sastry and Struble &
Rood ideas, the open galaxy clusters are the beginning
stage of cluster evolution. We found in the O-type
clusters some types of statistically significant regular
peculiarities, such as two crossed belts or curved strip.
We suppose founded features connected with galaxy
clusters evolution and the distribution of DM inside
the clusters.
Опис
Ключові слова
Galaxies, clusters, morphological types
Бібліографічний опис
Odessa Astronomical publications = Одесские астрономические публикации = Одеські астрономічні публікації