Zobrazeno 1 - 10
of 50
pro vyhledávání: '"E. Panko"'
Publikováno v:
Odessa Astronomical Publications, Vol 32, Iss 0, Pp 33-36 (2019)
We propose detailed scheme that is describing the morphology of linear substructures in galaxy clusters. Our base morphological scheme di- vides galaxy clusters using numerical criteria according the parameters: concentration to the cluster center, t
Externí odkaz:
https://doaj.org/article/07e99da0c18b4a9f95311cfc23bc3b54
Publikováno v:
Odessa Astronomical Publications, Vol 31, Iss 0, Pp 29-32 (2018)
The results of the detailed analysis of the 2D distribution of galaxies in 28 rich galaxy clusters with significant concentration to the cluster center are present. The analysis was executed in these directions: the detection of regular substructure
Externí odkaz:
https://doaj.org/article/a14070000aea43c182d74678dcb9f712
Publikováno v:
Odessa Astronomical Publications, Vol 18, Iss 0, Pp 81-83 (2017)
We discuss the difficulty of detecting of galaxy structures when the Voronoi tessellation technique is applied to two dimensional data. The problem relates to the determination of the mean density of objects in an investigated field. For data origina
Externí odkaz:
https://doaj.org/article/7d5c2c7791b842d58ab4f9698f2b138f
Autor:
E. Panko, S. Andrievsky
Publikováno v:
Odessa Astronomical Publications, Vol 25, Iss 2, Pp 134-137 (2012)
The properties of isolated galaxy clusters are discussed. The clusters were found among 1746 PF clusters inclusive 50 and more galaxies in structure field. For 19 clusters with distances to the nearest neighbour larger than 68.5 h-1 Mpc we assigned t
Externí odkaz:
https://doaj.org/article/2a7828eff5c64201857d1a393c2ee63e
Publikováno v:
Odessa Astronomical Publications, Vol 20, Iss 1, Pp 26-29 (2007)
We discuss factors influencing the determination of the observed shape of galaxy clusters when the covariance ellipse method is involved. The analysis of 377 Abell clusters show that at greater distances from the cluster center the ellipticity is rat
Externí odkaz:
https://doaj.org/article/d92b366f57ef4fff89b129c63700e8b9
Publikováno v:
Odessa Astronomical Publications, Vol 21, Iss 0, Pp 158-160 (2008)
We discuss the influence of atmospheric extinction to visibility of galaxies in the visual region of the spectrum. For this purpose the plates covering the same, small region of the sky taken with 2-m telescope, at different zenith distances were obt
Externí odkaz:
https://doaj.org/article/9c3d5b9818104275bda5b9a61b89dec7
Akademický článek
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Autor:
E. Panko
Publikováno v:
Open Astronomy, Vol 20, Iss 2, Pp 313-316 (2011)
The Modified Catalog of Galaxy Clusters and Groups (Panko & Flin 2006, PF), covering an area of 5000 square degrees in the southern sky, was used as the input for the search of galaxy superclusters. Only the estimated redshifts could be used, since t
Autor:
E. Panko, A. E. Tarasov
Publikováno v:
International Astronomical Union Colloquium. 175:543-546
The parameters of the Hα line profile of the Be star o And were determined from observations carried out during the period 1985 - 1998. At this time the line has undergone significant changes – from a pure absorption photospheric profile with no s
Akademický článek
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