Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Kopylov, Alexander I"'
Publikováno v:
Astronomy Reports, 2024, Vol.68, No8, pp.761-770
To determine the relative distances and peculiar velocities of 140 groups and clusters of galaxies at low redshifts ($z$ < 0.12), we used the fundamental plane (FP) of early-type galaxies (from the Sloan Digital Sky Survey (SDSS) data). We constructe
Externí odkaz:
http://arxiv.org/abs/2409.16871
This work is a continuation of the work of Kopylova and Kopylov (2016) to build a fundamental plane (FP) of groups and clusters of galaxies -- here a sample of galaxies systems is increased from 94 to 172 objects. We have studied the ratios between t
Externí odkaz:
http://arxiv.org/abs/2409.01799
Publikováno v:
Astrophysical Bulletin, 77, 22, 2022
We report the results of a study of the distribution of galaxies in the projection along the radius ($R \leq 3R_{200c}$) for 157~groups and clusters of galaxies in the local Universe (0.01 < $z$ < 0.10) with line-of-sight velocity dispersions~200~km~
Externí odkaz:
http://arxiv.org/abs/2406.09806
Publikováno v:
Conference Proceedings of the "The Multifaceted Universe: Theory and Observations - 2022 (MUTO2022)"
We present a study of the distribution of galaxies along the radius of 157 groups and clusters of galaxies (200~km~s$^{-1}$ < $\sigma$ < 1100~km~s$^{-1}$) of the local Universe (0.01 < $z$ < 0.1). We introduced a new boundary of galaxy systems and id
Externí odkaz:
http://arxiv.org/abs/2301.05432
The paper presents the results of studying the dynamics of galaxies, properties of early-type galaxies, properties of galaxies with the quenched star formation (QGs) in the A 2142 based on the archival data from the Sloan Digital Sky Survey. We found
Externí odkaz:
http://arxiv.org/abs/2205.02497
Publikováno v:
published in the Astrophysical Bulletin, 2019, 74, 4, 365-378
We study the outskirts ($R<3R_{200c}$) of 40 groups and clusters of galaxies of the local Universe ($0.02
Externí odkaz:
http://arxiv.org/abs/2103.05372
Publikováno v:
published in the Astrophysical Bulletin, 2020, 75, 4, 424-432
Based on the SDSS data, the properties of galaxies with quenched star formation (QGs) within the "splashback"-radius of galaxy clusters $R_{\rm sp}$ and beyond it have been studied. We used a sample of 40 groups and galaxy clusters and a sample of fi
Externí odkaz:
http://arxiv.org/abs/2103.05366
Autor:
Parijskij, Yurij N., Kopylov, Alexander I., Temirova, Adelina V., Soboleva, Natalia S., Zhelenkova, Olga P., Verkhodanov, Oleg V., Goss, William Miller, Fatkhullin, Timur A.
Publikováno v:
Astronomy Reports, 2010, v.54, Iss.8, pp.675-695
We present the results of spectroscopy of 71 objects with steep and ultra-steep spectra ($\alpha<-0.9$, $S\propto\nu^\alpha$) from the "Big Trio" (RATAN-600-VLA-BTA) project, performed with the "Scorpio" spectrograph on the 6-m telescope of the Speci
Externí odkaz:
http://arxiv.org/abs/1011.1649
Publikováno v:
Astrophys.Bull.62:311,2007
The structure of the A1035 cluster of galaxies (10h32m +40d13', cz ~ 22000 km/s), which exhibits a bimodal distribution of galaxy radial velocities (\Delta V\approx 3000 km/s), is analyzed using three methods of determining the relative distances to
Externí odkaz:
http://arxiv.org/abs/0912.2501
Publikováno v:
Astrophys.Bull.64:1-23,2009
We analyze the properties of the clusters of galaxies in the region of the Ursa Major (UMa) supercluster using observational data from SDSS and 2MASS catalogs. The region studied includes a supercluster (with a galaxy and cluster overdensity of 3 and
Externí odkaz:
http://arxiv.org/abs/0912.2503