Results 31 to 40 of about 12,793,373 (294)
The DEEP2 Galaxy Redshift Survey: The Voronoi-Delaunay Method Catalog of Galaxy Groups [PDF]
, 2012 We present a public catalog of galaxy groups constructed from the spectroscopic sample of galaxies in the fourth data release from the Deep Extragalactic Evolutionary Probe 2 (DEEP2) Galaxy Redshift Survey, including the Extended Groth Strip (EGS).
Aaron A. Dutton +49 more
core +10 more sources
Universe, 2021 Galaxy groups are more than an intermediate scale between clusters and halos hosting individual galaxies, they are crucial laboratories capable of testing a range of astrophysics from how galaxies form and evolve to large scale structure (LSS) statistics
Benjamin D. Oppenheimer +4 more
doaj +1 more source
Highlights of Astronomy, 1977 I would like to report on some work that Ed Turner and I have done on groups of galaxies and how groups may be used to obtain useful cosmological information. Of course the classic study of groups of galaxies was done by de Vaucouleurs (1975) who made a catalogue of groups and loose associations of galaxies in the local supercluster. Partly to obtain a
openaire +2 more sources
The Astrophysical Journal, 1993 The shape of groups of galaxies has been since now a disregarded topic in the literature, mainly due to the fact that individual ellipticity estimates of poor systems are strongly biased toward higher values. Such a bias turns out to depend on both the ellipticity itself and on the richness of the group. In this paper we have devised a modified version
G. Fasano +3 more
openaire +5 more sources
A KiDS weak lensing analysis of assembly bias in GAMA galaxy groups [PDF]
, 2017 We investigate possible signatures of halo assembly bias for spectroscopically selected galaxy groups from the Galaxy And Mass Assembly (GAMA) survey using weak lensing measurements from the spatially overlapping regions of the deeper, high-imaging ...
A. Dvornik +21 more
semanticscholar +1 more source
Detection of Missing Baryons in Galaxy Groups with Kinetic Sunyaev–Zel’dovich Effect [PDF]
Astrophysical Journal, 2017 We present the detection of the kinetic Sunyaev–Zel’dovich effect (kSZE) signals from groups of galaxies as a function of halo mass down to using the Planck cosmic microwave background maps and stacking about 40,000 galaxy systems with known positions ...
Seunghwan Lim +3 more
semanticscholar +1 more source
The Origin of Intergalactic Light in Compact Groups of Galaxies
Universe, 2021 We investigate the origin of intergalactic light (IGL) in close groups of galaxies. IGL is hypothesized to be the byproduct of interaction and merger within compact groups.
Mark J. Henriksen
doaj +1 more source
Galaxy interactions II: High density environments [PDF]
, 2011 With the aim to assess the role of dense environments in galaxy interactions, properties we present an analysis of close galaxy pairs in groups and clusters, obtained from the Sloan Digital Sky Survey Data Release 7 (SDSS-DR7).
Abazajian +64 more
core +1 more source
LoCuSS : pre-processing in galaxy groups falling into massive galaxy clusters at z=0.2 [PDF]
, 2017 We report direct evidence of pre-processing of the galaxies residing in galaxy groups falling into galaxy clusters drawn from the Local Cluster Substructure Survey (LoCuSS). 34 groups have been identified via their X-ray emission in the infall regions of
M. Bianconi +5 more
semanticscholar +1 more source
Galaxies, 2021 Galaxy groups constitute the most common class of galaxy systems in the known Universe, unique in terms of environmental properties. However, despite recent advances in optical and infrared observations as well as in theoretical research, little is known
Błażej Nikiel-Wroczyński
doaj +1 more source