Results 21 to 30 of about 19,184 (264)
Galaxy groups in the 2dF Galaxy Redshift Survey: a compactness analysis of groups [PDF]
Monthly Notices of the Royal Astronomical Society, 2003 A comprehensive study on compactness has been carried out on the 2dF Galaxy Group Catalogue constructed by Merchán & Zandivarez. The compactness indexes defined in this work take into account different geometrical constraints in order to explore a wide range of possibilities.
Zandivarez, A. +4 more
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Galaxy groups in the 2dF Galaxy Redshift Survey: galaxy spectral type segregation in groups [PDF]
Monthly Notices of the Royal Astronomical Society, 2002 3 figures replaced, accepted for publication in ...
Dominguez, M. J. +5 more
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The 2dF Galaxy Redshift Survey: the clustering of galaxy groups [PDF]
Monthly Notices of the Royal Astronomical Society, 2004 16 pages.
Padilla, Nelson D. +29 more
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Searches for ultracompact dwarf galaxies in galaxy groups [PDF]
Monthly Notices of the Royal Astronomical Society, 2007 8 pages, 2 figures, accepted for publication in ...
Evstigneeva, E. A. +6 more
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Feedback from Active Galactic Nuclei in Galaxy Groups
Universe, 2021 The co-evolution between supermassive black holes and their environment is most directly traced by the hot atmospheres of dark matter halos. The cooling of the hot atmosphere supplies the central regions with fresh gas, igniting active galactic nuclei ...
Dominique Eckert +4 more
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The Evolution of Galaxy Groups and of Galaxies Therein [PDF]
, 2007 Properties of groups of galaxies depend sensitively on the algorithm for group selection, and even the most recent catalogs of groups built from redshift-space selection should suffer from projections and infalling galaxies. The cosmo-dynamical evolution of groups from initial Hubble expansion to collapse and virialization leads to a fundamental track (
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Filaments of galaxies and Voronoi diagrams
Open Astronomy, 2018 The intersections between a spherical shell and the faces of Voronoi polyhedrons are numerically evaluated. The nodes of these intersections are the points that share the same distances from three nuclei.
Zaninetti Lorenzo
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STUDYING GALAXY FORMATION IN LOOSE GALAXY GROUPS [PDF]
, 2007 4 pages, To appear in the proceedings of the "Island Universes: Structure and Evolution of Disk Galaxies" conference held in Terschelling, Netherlands, July 2005, ed. R. de Jong (Springer: Dordrecht)
Pisano, D. J. +5 more
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Isolated Galaxies, Pairs and Groups of Galaxies [PDF]
International Astronomical Union Colloquium, 1990 We searched for isolated galaxies, pairs and groups of galaxies in the CfA survey (Huchra et al. 1983). It was assumed that the distances to galaxies are given by R = V/H0, where H0 = 100 km s−1 Mpc−1 and R> 6 Mpc.
I. Kuneva, M. Kalinkov
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The Orientation of Galaxies in Nearby Galaxy Groups [PDF]
Symposium - International Astronomical Union, 2004 The statistical analysis of six nearby groups of galaxies, connected with the Milky Way, M31, M81, M101, NGC5128 and NGC5236 shows an isotropic distribution of galaxy planes, similarly to galaxies within the Local Group. Also planes of galaxies in the nearby (Vr < 500 km s−1) region of the Local Supercluster exhibit random distribution, disregarding
P. Flin, M. Biernacka, J. Krywult
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