Results 31 to 40 of about 68,025 (275)
Constraints on the Optical Depth of Galaxy Groups and Clusters [PDF]
, 2016 Future data from galaxy redshift surveys, combined with high-resolutions maps of the cosmic microwave background, will enable measurements of the pairwise kinematic Sunyaev–Zel’dovich (kSZ) signal with unprecedented statistical significance.
S. Flender, D. Nagai, M. McDonald
semanticscholar +1 more source
Iron in galaxy groups and clusters: confronting galaxy evolution models with a newly homogenized data set [PDF]
, 2016 We present an analysis of the iron abundance in the hot gas surrounding galaxy groups and clusters. To do this, we first compile and homogenize a large data set of 79 low-redshift (z = 0.03) systems (159 individual measurements) from the literature.
R. Yates, P. Thomas, B. Henriques
semanticscholar +1 more source
Towards a realistic population of simulated galaxy groups and clusters [PDF]
, 2013 We present a new suite of large-volume cosmological hydrodynamical simulations called cosmo-OWLS. They form an extension to the OverWhelmingly Large Simulations (OWLS) project, and have been designed to help improve our understanding of cluster ...
A. Brun +3 more
semanticscholar +1 more source
Globular Clusters around Galaxies in Groups [PDF]
Symposium - International Astronomical Union, 2002 We have obtained deep photometry of NGC 1199 (in HCG 22) and NGC 6868 (in the Telescopium group). Both galaxies are the optically brightest galaxies of their groups. Our analysis of B and R images taken with the Keck II and the VLT/ESO telescopes, detected a population of globular clusters around both galaxies, with total specific frequencies SN = 1.7 ±
Da Rocha, Martine +4 more
openaire +9 more sources
The Astrophysical Journal, 2023 We investigate the fraction of quenched satellite galaxies in host galaxy groups and clusters using TNG300 in the IllustrisTNG cosmological magnetohydrodynamical simulations.
So-Myoung Park +7 more
doaj +1 more source
Galaxy evolution in groups and clusters: satellite star formation histories and quenching time-scales in a hierarchical Universe [PDF]
, 2012 Satellite galaxies in groups and clusters are more likely to have low star formation rates (SFR) and lie on the red-sequence than central (field) galaxies.
A. Wetzel +3 more
semanticscholar +1 more source
Hot Atmospheres of Galaxies, Groups, and Clusters of Galaxies [PDF]
, 2020 Accepted for publication in the book "Reviews in Frontiers of Modern Astrophysics: From Space Debris to Cosmology" (eds Kabath, Jones and Skarka; publisher Springer Nature) funded by the European Union Erasmus+ Strategic Partnership grant "Per Aspera Ad Astra Simul" 2017-1-CZ01-KA203 ...
Norbert Werner +4 more
openaire +3 more sources
Scaling Properties of Galaxy Groups
Universe, 2021 Galaxy groups and poor clusters are more common than rich clusters, and host the largest fraction of matter content in the Universe. Hence, their studies are key to understand the gravitational and thermal evolution of the bulk of the cosmic matter ...
Lorenzo Lovisari +3 more
doaj +1 more source
Missing Baryons, from Clusters to Groups of Galaxies [PDF]
The Astrophysical Journal, 2007 From clusters to groups of galaxies, the powerful bremsstrahlung radiation L_X emitted in X rays by the intracluster plasma is observed to decline sharply with lowering virial temperatures T (i.e., at shallower depths of the gravitational wells) after a steep local L_X-T correlation; this implies increasing scarcity of diffuse baryons relative to dark ...
A. Cavaliere, Andrea Lapi
openalex +6 more sources
Percolation Galaxy Groups and Clusters in the SDSS Redshift Survey: Identification, Catalogs, and the Multiplicity Function [PDF]
, 2006 We identify galaxy groups and clusters in volume-limited samples of the Sloan Digital Sky Survey (SDSS) redshift survey, using a redshift-space friends-of-friends algorithm.
A. Berlind +22 more
semanticscholar +1 more source