Results 21 to 30 of about 34,562 (271)

Simulating Galaxy Clusters

open access: yesInternational School of Physics “Enrico Fermi”, 2010
40 pages, 26 figures, Enrico Fermi Summer School "Astrophysics of Galaxy Clusters" held in Varenna, Italy July 15-25 ...
openaire   +2 more sources

Galaxy activity in merging binary galaxy clusters [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2009
We present the results of a study of galaxy activity in two merging binary clusters (A168 and A1750) using the Sloan Digital Sky Survey (SDSS) data supplemented with the data in the literature. We have investigated the merger histories of A168 and A1750 by combining the results from a two-body dynamical model and X-ray data.
Hwang, Ho Seong, Lee, Myung Gyoon
openaire   +2 more sources

THE ORIENTATION OF GALAXIES IN GALAXY CLUSTERS [PDF]

open access: yesThe Astrophysical Journal, 2010
We present an analysis of the spatial orientations of galaxies in the 247 optically selected rich Abell clusters, having in the considered area at least 100 members. We investigated the relation between angles giving information about galaxy angular momenta and the number of members in each structure.
Godlowski, Wlodzimierz   +3 more
openaire   +2 more sources

Probing the evolution of galaxy clusters using SZ effect and non-thermal emission: First results from A1413 [PDF]

open access: yesEPJ Web of Conferences
Mass is the most fundamental property of galaxy clusters. However, measuring it is still a challenge. Calibrating mass from intracluster medium observables such as the Sunyaev-Zel’dovich (SZ) effect is subject to uncertainty and biases because of the ...
Pachchigar M., Perrott Y., Parashar T.
doaj   +1 more source

Galaxies and subhaloes in ΛCDM galaxy clusters [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2004
6 pages, 2 figures, accepted for publication in Monthly Notices Letters.
Gao, Liang   +3 more
openaire   +2 more sources

The JWST PEARLS View of the El Gordo Galaxy Cluster and of the Structure It Magnifies

open access: yesThe Astrophysical Journal, 2023
The massive galaxy cluster El Gordo ( z = 0.87) imprints multitudes of gravitationally lensed arcs onto James Webb Space Telescope Near-Infrared Camera (NIRCam) images.
Brenda L. Frye   +43 more
doaj   +1 more source

Cluster Galaxies Die Hard

open access: yesMonthly Notices of the Royal Astronomical Society, 2009
Models of ram-pressure stripping and some extra discussion added, references added. Conclusions unchanged. 20 pages, 15 figures. Accepted for publication in MNRAS.
Weinmann Simone M.   +3 more
openaire   +3 more sources

A Formation Mechanism for “Wrong Way” Radio Relics

open access: yesThe Astrophysical Journal Letters, 2023
Radio relics are typically found to be arc-like regions of synchrotron emission in the outskirts of merging galaxy clusters, bowing out from the cluster center.
Ludwig M. Böss   +2 more
doaj   +1 more source

Constructing a Galaxy Cluster Catalog in IllustrisTNG300 Using the Mulguisin Algorithm

open access: yesThe Astrophysical Journal
We present a new simulated galaxy cluster catalog based on the IllustrisTNG simulation. We use the Mulguisin (MGS) algorithm to identify galaxy overdensities.
Lael Shin   +4 more
doaj   +1 more source

Clustering of Submillimetre-Selected Galaxies [PDF]

open access: yesThe Astrophysical Journal, 2004
Using accurate positions from very deep radio observations to guide multi-object Keck spectroscopy, we have determined a substantially complete redshift distribution for very luminous, distant submillimeter(submm)-selected galaxies (SMGs). A sample of 73 redshifts for SMGs in 7 fields contains a surprisingly large number of `associations': systems of ...
Blain, Andrew W.   +3 more
openaire   +2 more sources

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