10 citations · 29 across the 19 of their papers we have counts for
7 papers · 1 filter
Luminosity - Spectral Index Dependence of X-ray Bright Seyfert Galaxies
V. A. Sadova, A. V. Tugay
X-ray luminosities and spectral indices of 97 bright Seyfert 1 galaxies from XMM archive are analyzed in this article. Distribution of these values is random so we conclude that th…
X-ray Emission and Orientation of Selected PF Galaxy Clusters
A. V. Tugay, S. S. Dylda, E. A. Panko
X-ray counterparts for 35 galaxy clusters contained in the PF catalog of galaxy clusters and groups were found in XMM-Newton archive. 22 ones (all from ACO catalogue) have extended…
Statistical Analysis of Large-Scale Structure of Universe
A. V. Tugay
While galaxy cluster catalogs were compiled many decades ago, other structural elements of cosmic web are detected at definite level only in the newest works. For example, extragal…
Determination of the Galaxy Cluster Orientation Using X-ray Images by FOCAS Method
A. V. Tugay, S. Yu. Shevchenko
In our work we considered orientations of bright X-ray halos of the galaxy clusters (mainly Abell clusters). 78 appropriate clusters were selected using data from Xgal sample of ex…
X-ray Emission of ICRF Sources
V. V. Voitsekhovskiy, A. V. Tugay, V. V. Tkachuk +1
Considering increasing requirements to the coordinates measurement precision by the end of XX century International Astronomical Union commenced implementation of the new astrometr…
Simulation of Large-Scale Structure of Universe by Gaussian Random Fields
V. V. Voitsekhovskiy, A. V. Tugay
Large-scale structure of Universe includes galaxy clusters connected by filaments. Voids occupy the rest of cosmic volume. The search of any dependencities in filament structure ca…